Finding the Third Proportional to 8,358.50 and 18,215.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,358.50 : 18,215.38 = 18,215.38 : x
2. Step 2: Convert to fraction form
   8,358.50/18,215.38 = 18,215.38/x
3. Step 3: Cross multiply
   8,358.50x = 18,215.38 × 18,215.38
4. Step 4: Simplify right side
   8,358.50x = 331,799,886.39
5. Step 5: Solve for x
   x = 331,799,886.39/8,358.50
6. Step 6: Final answer
   x = 39,696.10