Finding the Third Proportional to 9,250 and 12,399

Step by Step Solution

1. Step 1: Write the proportion equation
   9,250 : 12,399 = 12,399 : x
2. Step 2: Convert to fraction form
   9,250/12,399 = 12,399/x
3. Step 3: Cross multiply
   9,250x = 12,399 × 12,399
4. Step 4: Simplify right side
   9,250x = 153,735,201
5. Step 5: Solve for x
   x = 153,735,201/9,250
6. Step 6: Final answer
   x = 16,620.02