Finding the Third Proportional to 31,156,425 and 68,291,442

Step by Step Solution

1. Step 1: Write the proportion equation
   31,156,425 : 68,291,442 = 68,291,442 : x
2. Step 2: Convert to fraction form
   31,156,425/68,291,442 = 68,291,442/x
3. Step 3: Cross multiply
   31,156,425x = 68,291,442 × 68,291,442
4. Step 4: Simplify right side
   31,156,425x = 4,663,721,050,439,364
5. Step 5: Solve for x
   x = 4,663,721,050,439,364/31,156,425
6. Step 6: Final answer
   x = 149,687,297.26