Finding the Third Proportional to 31,613 and 67,725

Step by Step Solution

1. Step 1: Write the proportion equation
   31,613 : 67,725 = 67,725 : x
2. Step 2: Convert to fraction form
   31,613/67,725 = 67,725/x
3. Step 3: Cross multiply
   31,613x = 67,725 × 67,725
4. Step 4: Simplify right side
   31,613x = 4,586,675,625
5. Step 5: Solve for x
   x = 4,586,675,625/31,613
6. Step 6: Final answer
   x = 145,088.27