Finding the Third Proportional to 9,610.88 and 12,931.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,610.88 : 12,931.88 = 12,931.88 : x
2. Step 2: Convert to fraction form
   9,610.88/12,931.88 = 12,931.88/x
3. Step 3: Cross multiply
   9,610.88x = 12,931.88 × 12,931.88
4. Step 4: Simplify right side
   9,610.88x = 167,233,391.02
5. Step 5: Solve for x
   x = 167,233,391.02/9,610.88
6. Step 6: Final answer
   x = 17,400.43