OK.
You know what mower you have
You have been looking at it a lot closer than you probably ever wanted to
WE on the other hand only know you have a yellow mower that is not working as it should
If we knew the model & serial number of your yellow mower hen we could look up the parts book to find the belt number than a cross reference chart to get the belt length, & profile
And of course the deck size would also have been handy because some models can have several different deck sizes and bigger decks tend to have longer belts but as the only thing we know is your mower is yellow then the answer for now is
No