Finding the Third Proportional to 14,781.75 and 17,515.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,781.75 : 17,515.50 = 17,515.50 : x
2. Step 2: Convert to fraction form
   14,781.75/17,515.50 = 17,515.50/x
3. Step 3: Cross multiply
   14,781.75x = 17,515.50 × 17,515.50
4. Step 4: Simplify right side
   14,781.75x = 306,792,740.25
5. Step 5: Solve for x
   x = 306,792,740.25/14,781.75
6. Step 6: Final answer
   x = 20,754.83