Finding the Third Proportional to 34,342 and 72,436

Step by Step Solution

1. Step 1: Write the proportion equation
   34,342 : 72,436 = 72,436 : x
2. Step 2: Convert to fraction form
   34,342/72,436 = 72,436/x
3. Step 3: Cross multiply
   34,342x = 72,436 × 72,436
4. Step 4: Simplify right side
   34,342x = 5,246,974,096
5. Step 5: Solve for x
   x = 5,246,974,096/34,342
6. Step 6: Final answer
   x = 152,785.92