Finding the Third Proportional to 31,510,734 and 68,399,328

Step by Step Solution

1. Step 1: Write the proportion equation
   31,510,734 : 68,399,328 = 68,399,328 : x
2. Step 2: Convert to fraction form
   31,510,734/68,399,328 = 68,399,328/x
3. Step 3: Cross multiply
   31,510,734x = 68,399,328 × 68,399,328
4. Step 4: Simplify right side
   31,510,734x = 4,678,468,070,851,584
5. Step 5: Solve for x
   x = 4,678,468,070,851,584/31,510,734
6. Step 6: Final answer
   x = 148,472,202.23