Finding the Third Proportional to 8,352.56 and 12,487.92

Step by Step Solution

1. Step 1: Write the proportion equation
   8,352.56 : 12,487.92 = 12,487.92 : x
2. Step 2: Convert to fraction form
   8,352.56/12,487.92 = 12,487.92/x
3. Step 3: Cross multiply
   8,352.56x = 12,487.92 × 12,487.92
4. Step 4: Simplify right side
   8,352.56x = 155,948,192.76
5. Step 5: Solve for x
   x = 155,948,192.76/8,352.56
6. Step 6: Final answer
   x = 18,670.70