Finding the Third Proportional to 8,209.69 and 18,008.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,209.69 : 18,008.16 = 18,008.16 : x
2. Step 2: Convert to fraction form
   8,209.69/18,008.16 = 18,008.16/x
3. Step 3: Cross multiply
   8,209.69x = 18,008.16 × 18,008.16
4. Step 4: Simplify right side
   8,209.69x = 324,293,691.52
5. Step 5: Solve for x
   x = 324,293,691.52/8,209.69
6. Step 6: Final answer
   x = 39,501.34