Finding the Third Proportional to 155,148,570 and 231,377,442

Step by Step Solution

1. Step 1: Write the proportion equation
   155,148,570 : 231,377,442 = 231,377,442 : x
2. Step 2: Convert to fraction form
   155,148,570/231,377,442 = 231,377,442/x
3. Step 3: Cross multiply
   155,148,570x = 231,377,442 × 231,377,442
4. Step 4: Simplify right side
   155,148,570x = 53,535,520,666,463,360
5. Step 5: Solve for x
   x = 53,535,520,666,463,360/155,148,570
6. Step 6: Final answer
   x = 345,059,710.61