Hi, @Grace_P –
Interesting question. Have you tried to do this yet? I will always recommend that you test it out before relying on any answer – mine included. Account settings vary widely, and might affect your actual ability, regardless of what you’re told.
That said, it if my understanding that of you are a Pro user, you can designate anyone – including a free/basic user – to be a host, and when you leave the meeting, they maintain all the privileges that a host would normally have. Note that if the meeting crashes for some reason, the designated co-host can’t restart the meeting. Also, you will be unable to start another meeting while your original meeting was still in progress — you well be forced to either allow the ongoing meeting to be closed, or abandon the request to start the new meeting.
Again, with this and most questions like this — just log on and try it.