Finding the Third Proportional to 8,411.50 and 13,061.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,411.50 : 13,061.75 = 13,061.75 : x
2. Step 2: Convert to fraction form
   8,411.50/13,061.75 = 13,061.75/x
3. Step 3: Cross multiply
   8,411.50x = 13,061.75 × 13,061.75
4. Step 4: Simplify right side
   8,411.50x = 170,609,313.06
5. Step 5: Solve for x
   x = 170,609,313.06/8,411.50
6. Step 6: Final answer
   x = 20,282.86