Finding the Third Proportional to 9,708.75 and 13,061.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,708.75 : 13,061.25 = 13,061.25 : x
2. Step 2: Convert to fraction form
   9,708.75/13,061.25 = 13,061.25/x
3. Step 3: Cross multiply
   9,708.75x = 13,061.25 × 13,061.25
4. Step 4: Simplify right side
   9,708.75x = 170,596,251.56
5. Step 5: Solve for x
   x = 170,596,251.56/9,708.75
6. Step 6: Final answer
   x = 17,571.39