Finding the Third Proportional to 8,870 and 9,830

Step by Step Solution

1. Step 1: Write the proportion equation
   8,870 : 9,830 = 9,830 : x
2. Step 2: Convert to fraction form
   8,870/9,830 = 9,830/x
3. Step 3: Cross multiply
   8,870x = 9,830 × 9,830
4. Step 4: Simplify right side
   8,870x = 96,628,900
5. Step 5: Solve for x
   x = 96,628,900/8,870
6. Step 6: Final answer
   x = 10,893.90