Finding the Third Proportional to 9,499 and 10,921

Step by Step Solution

1. Step 1: Write the proportion equation
   9,499 : 10,921 = 10,921 : x
2. Step 2: Convert to fraction form
   9,499/10,921 = 10,921/x
3. Step 3: Cross multiply
   9,499x = 10,921 × 10,921
4. Step 4: Simplify right side
   9,499x = 119,268,241
5. Step 5: Solve for x
   x = 119,268,241/9,499
6. Step 6: Final answer
   x = 12,555.87