You're on the right track, @sprints!
You can also pay your bills directly with the credit card payment you received. I'm here to share a few insights and help you from there.
Firstly, you'll have to convert your purchase order to a bill so you pay it with the credit card you received. To convert a purchase order:
Once completed, you can now pay your bill with the credit card payment you received. Let me show you how:
As always, you can visit our Help Articles page for QuickBooks Desktop in case you need some related articles for your future tasks.
If there's anything else that I can help you with, please let me know in the comment section down below. I'll be always around ready to help.