Finding the Third Proportional to 34,342.50 and 72,435

Step by Step Solution

1. Step 1: Write the proportion equation
   34,342.50 : 72,435 = 72,435 : x
2. Step 2: Convert to fraction form
   34,342.50/72,435 = 72,435/x
3. Step 3: Cross multiply
   34,342.50x = 72,435 × 72,435
4. Step 4: Simplify right side
   34,342.50x = 5,246,829,225
5. Step 5: Solve for x
   x = 5,246,829,225/34,342.50
6. Step 6: Final answer
   x = 152,779.48