Finding the Third Proportional to 9,660 and 10,500

Step by Step Solution

1. Step 1: Write the proportion equation
   9,660 : 10,500 = 10,500 : x
2. Step 2: Convert to fraction form
   9,660/10,500 = 10,500/x
3. Step 3: Cross multiply
   9,660x = 10,500 × 10,500
4. Step 4: Simplify right side
   9,660x = 110,250,000
5. Step 5: Solve for x
   x = 110,250,000/9,660
6. Step 6: Final answer
   x = 11,413.04