Finding the Third Proportional to 8,108.86 and 17,815.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,108.86 : 17,815.22 = 17,815.22 : x
2. Step 2: Convert to fraction form
   8,108.86/17,815.22 = 17,815.22/x
3. Step 3: Cross multiply
   8,108.86x = 17,815.22 × 17,815.22
4. Step 4: Simplify right side
   8,108.86x = 317,382,019.11
5. Step 5: Solve for x
   x = 317,382,019.11/8,108.86
6. Step 6: Final answer
   x = 39,140.16