Finding the Third Proportional to 31,561 and 52,599

Step by Step Solution

1. Step 1: Write the proportion equation
   31,561 : 52,599 = 52,599 : x
2. Step 2: Convert to fraction form
   31,561/52,599 = 52,599/x
3. Step 3: Cross multiply
   31,561x = 52,599 × 52,599
4. Step 4: Simplify right side
   31,561x = 2,766,654,801
5. Step 5: Solve for x
   x = 2,766,654,801/31,561
6. Step 6: Final answer
   x = 87,660.56