Navigate to report Page embedded in website IFrame

Hello Experts,
We have two reports embedded in iframes on our website. Report A contains multiple buttons displaying high-level numbers, while Report B is a detailed report which includes three pages.
The requirement is as follows:
- Clicking a button in Report A should navigate to Page 2 of Report B within the iframe.
- Another button in Report A should navigate to Page 3 of Report B within the iframe

Please help me if there is any solution.

Thanks in advance