Finding the Third Proportional to 31,417.31 and 68,363.02

Step by Step Solution

1. Step 1: Write the proportion equation
   31,417.31 : 68,363.02 = 68,363.02 : x
2. Step 2: Convert to fraction form
   31,417.31/68,363.02 = 68,363.02/x
3. Step 3: Cross multiply
   31,417.31x = 68,363.02 × 68,363.02
4. Step 4: Simplify right side
   31,417.31x = 4,673,501,905.34
5. Step 5: Solve for x
   x = 4,673,501,905.34/31,417.31
6. Step 6: Final answer
   x = 148,755.62