Teleport commands

Dear community,

i would like to know if/how I can teleport a player (not me) to a specific position on a map.
What I tried was to use the “teleportpos” command with multiple parameters, like:

teleportpos steamid (x,y,z)
teleportpos (x,y,z) steamid

But this does not work.
Is there any posibility to do this in vanilla and if so, how?

Thanks for any help