Finding the Third Proportional to 34,515 and 72,495

Step by Step Solution

1. Step 1: Write the proportion equation
   34,515 : 72,495 = 72,495 : x
2. Step 2: Convert to fraction form
   34,515/72,495 = 72,495/x
3. Step 3: Cross multiply
   34,515x = 72,495 × 72,495
4. Step 4: Simplify right side
   34,515x = 5,255,525,025
5. Step 5: Solve for x
   x = 5,255,525,025/34,515
6. Step 6: Final answer
   x = 152,267.86