How to get the average CFrame of all the players?

What I'm trying to do is make the CurrentCamera for all players to constantly center between all the players in the server who have their playing boolValue checked. (Something similar to a Smash Bros camera during a battle)

local Camera = game.Workspace.CurrentCamera

local Player = game.Players:GetChildren()

local plr = script.Parent.Parent

local Player_T = game.Workspace.Angle

repeat
    wait()
until Camera.CFrame

Camera.CameraType = Enum.CameraType.Scriptable
Camera.CameraSubject = Player_T

Camera.CFrame = CFrame.new(Player_T.CFrame.X, Player_T.CFrame.Y, Player_T.CFrame.Z + 30)
Camera.FieldOfView = 80

for i = 1, #Player do
    wait()
    print(i.." - "..Player[i].Name)
end

repeat
    wait()
until plr:FindFirstChild("Playing")

repeat
    wait()
until plr.Playing.Value == true

for i = 1, #Player do
Player[i]:WaitForChild("Playing")
if Player[i].Playing.Value == true then

print(i.." "..Player[i].Name)

while Player[i].Character == nil do
    wait()
end

while Player[i].Character.UpperTorso == nil do
    wait(2)
end

local x = Player[1].Character.UpperTorso.CFrame.X

for b = 1, #Player do
    if Player[b+1] ~= nil then
x = x + Player[b+1].Character.UpperTorso.CFrame.X
    end
end

x = x * CFrame.new(0.5,0,0)

print(x)

local Player_Torso = Player[i].Character.UpperTorso

local BodyPositioner = Instance.new("BodyPosition", Player_Torso)
BodyPositioner.MaxForce = Vector3.new(0, 0, math.huge)
BodyPositioner.Position = Vector3.new(0, 0,Player_Torso.Position.Z)

-------------------------------------------------------------------

Camera.CameraType = Enum.CameraType.Scriptable
Camera.CameraSubject = Player_Torso
game:GetService("RunService").RenderStepped:connect(function()
Camera.CFrame = CFrame.new(Player_Torso.CFrame.X, Player_Torso.CFrame.Y, Player_Torso.CFrame.Z + 30)
Camera.FieldOfView = 80
end)
end
end

When it get's to line 54, it used to say something else when I tried dividing, So instead I changed it to multiplying by a decimal lower than 1, but then this error came out:

PlayerScripts.LocalScript:54: bad argument #1 to '?' (CFrame expected, got number)

I'm guessing this is saying that I'm trying to multiply the X value by a whole CFrame, but I have no idea how to simplify the CFrame.new into just an X value.

Any ideas or solutions?