Finding the Third Proportional to 8,872.50 and 9,700.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,872.50 : 9,700.50 = 9,700.50 : x
2. Step 2: Convert to fraction form
   8,872.50/9,700.50 = 9,700.50/x
3. Step 3: Cross multiply
   8,872.50x = 9,700.50 × 9,700.50
4. Step 4: Simplify right side
   8,872.50x = 94,099,700.25
5. Step 5: Solve for x
   x = 94,099,700.25/8,872.50
6. Step 6: Final answer
   x = 10,605.77