Finding the Third Proportional to 31,003,056 and 72,414,081

Step by Step Solution

1. Step 1: Write the proportion equation
   31,003,056 : 72,414,081 = 72,414,081 : x
2. Step 2: Convert to fraction form
   31,003,056/72,414,081 = 72,414,081/x
3. Step 3: Cross multiply
   31,003,056x = 72,414,081 × 72,414,081
4. Step 4: Simplify right side
   31,003,056x = 5,243,799,127,074,561
5. Step 5: Solve for x
   x = 5,243,799,127,074,561/31,003,056
6. Step 6: Final answer
   x = 169,138,136.80