Finding the Third Proportional to 9,387 and 12,088.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,387 : 12,088.50 = 12,088.50 : x
2. Step 2: Convert to fraction form
   9,387/12,088.50 = 12,088.50/x
3. Step 3: Cross multiply
   9,387x = 12,088.50 × 12,088.50
4. Step 4: Simplify right side
   9,387x = 146,131,832.25
5. Step 5: Solve for x
   x = 146,131,832.25/9,387
6. Step 6: Final answer
   x = 15,567.47