Position of other Player

Hey, i am making a simple 2D multiplayer game with photon, where 2 people are fighting. When Player A presses "E" a Meteor should be created with the X coordinate of Player B. So my question is: what would be a good way to get the X coordinate of the other Player?

 

I would assume you get a reference to the other player and get the X coordinate with otherPlayerReference.transform.position.x