Finding the Third Proportional to 31,438,337,424 and 68,181,120,552

Step by Step Solution

1. Step 1: Write the proportion equation
   31,438,337,424 : 68,181,120,552 = 68,181,120,552 : x
2. Step 2: Convert to fraction form
   31,438,337,424/68,181,120,552 = 68,181,120,552/x
3. Step 3: Cross multiply
   31,438,337,424x = 68,181,120,552 × 68,181,120,552
4. Step 4: Simplify right side
   31,438,337,424x = 4,648,665,199,726,356,856,832
5. Step 5: Solve for x
   x = 4,648,665,199,726,356,856,832/31,438,337,424
6. Step 6: Final answer
   x = 147,866,127,175.59