Finding the Third Proportional to 172,755,624 and 264,907,494

Step by Step Solution

1. Step 1: Write the proportion equation
   172,755,624 : 264,907,494 = 264,907,494 : x
2. Step 2: Convert to fraction form
   172,755,624/264,907,494 = 264,907,494/x
3. Step 3: Cross multiply
   172,755,624x = 264,907,494 × 264,907,494
4. Step 4: Simplify right side
   172,755,624x = 70,175,980,377,360,032
5. Step 5: Solve for x
   x = 70,175,980,377,360,032/172,755,624
6. Step 6: Final answer
   x = 406,215,315.90