Finding the Third Proportional to 8,666.25 and 12,384.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,666.25 : 12,384.38 = 12,384.38 : x
2. Step 2: Convert to fraction form
   8,666.25/12,384.38 = 12,384.38/x
3. Step 3: Cross multiply
   8,666.25x = 12,384.38 × 12,384.38
4. Step 4: Simplify right side
   8,666.25x = 153,372,744.14
5. Step 5: Solve for x
   x = 153,372,744.14/8,666.25
6. Step 6: Final answer
   x = 17,697.71