Finding the Third Proportional to 8,158.50 and 17,871.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,158.50 : 17,871.75 = 17,871.75 : x
2. Step 2: Convert to fraction form
   8,158.50/17,871.75 = 17,871.75/x
3. Step 3: Cross multiply
   8,158.50x = 17,871.75 × 17,871.75
4. Step 4: Simplify right side
   8,158.50x = 319,399,448.06
5. Step 5: Solve for x
   x = 319,399,448.06/8,158.50
6. Step 6: Final answer
   x = 39,149.29