Finding the Third Proportional to 9,864.28 and 10,695.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,864.28 : 10,695.80 = 10,695.80 : x
2. Step 2: Convert to fraction form
   9,864.28/10,695.80 = 10,695.80/x
3. Step 3: Cross multiply
   9,864.28x = 10,695.80 × 10,695.80
4. Step 4: Simplify right side
   9,864.28x = 114,400,070.79
5. Step 5: Solve for x
   x = 114,400,070.79/9,864.28
6. Step 6: Final answer
   x = 11,597.41