Finding the Third Proportional to 40,092 and 71,436

Step by Step Solution

1. Step 1: Write the proportion equation
   40,092 : 71,436 = 71,436 : x
2. Step 2: Convert to fraction form
   40,092/71,436 = 71,436/x
3. Step 3: Cross multiply
   40,092x = 71,436 × 71,436
4. Step 4: Simplify right side
   40,092x = 5,103,102,096
5. Step 5: Solve for x
   x = 5,103,102,096/40,092
6. Step 6: Final answer
   x = 127,284.80