Finding the Third Proportional to 8,142.75 and 16,717.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,142.75 : 16,717.50 = 16,717.50 : x
2. Step 2: Convert to fraction form
   8,142.75/16,717.50 = 16,717.50/x
3. Step 3: Cross multiply
   8,142.75x = 16,717.50 × 16,717.50
4. Step 4: Simplify right side
   8,142.75x = 279,474,806.25
5. Step 5: Solve for x
   x = 279,474,806.25/8,142.75
6. Step 6: Final answer
   x = 34,321.92