They finally saw eye to eye on the budget proposal.
Here, "eye to eye" means -

• "Eye to eye" means - Agreeing with someone.

• Eye to eye:
- English meaning: If two people see eye to eye, they agree with each other.
- Bangla meaning: কারো সাথে কোন বিষয়ে একমত হওয়া।

• Example Sentence:
1. Despite their differing opinions on the project, they managed to see eye to eye on the budget.
2. It's rare for my parents and me to see eye to eye on matters of politics.

Source: Advanced Learner's Communicative English Grammar & Composition By Chowdhury & Hossain.