Finding the Third Proportional to 8,713.50 and 13,510.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,713.50 : 13,510.88 = 13,510.88 : x
2. Step 2: Convert to fraction form
   8,713.50/13,510.88 = 13,510.88/x
3. Step 3: Cross multiply
   8,713.50x = 13,510.88 × 13,510.88
4. Step 4: Simplify right side
   8,713.50x = 182,543,743.27
5. Step 5: Solve for x
   x = 182,543,743.27/8,713.50
6. Step 6: Final answer
   x = 20,949.53