Tap the “Wallets” button on the lower right of the Binance app, then tap the “Web3” button
Tap the “Discover” button at the bottom and type “PancakeSwap” into the search bar
Tap the PancakeSwap icon to open it
Connect your wallet if not already connected
Tap the dropdown menu on the “To” section
Type “PROS” into the search bar
Tap the “PROS” button
Enter the amount of $PROS you want to buy
Tap the “Swap” button
Follow the on-screen instructions
Once the transaction has confirmed, close PancakeSwap