Finding the Third Proportional to 8,665.50 and 18,885

Step by Step Solution

1. Step 1: Write the proportion equation
   8,665.50 : 18,885 = 18,885 : x
2. Step 2: Convert to fraction form
   8,665.50/18,885 = 18,885/x
3. Step 3: Cross multiply
   8,665.50x = 18,885 × 18,885
4. Step 4: Simplify right side
   8,665.50x = 356,643,225
5. Step 5: Solve for x
   x = 356,643,225/8,665.50
6. Step 6: Final answer
   x = 41,156.68