Finding the Third Proportional to 9,156 and 12,422

Step by Step Solution

1. Step 1: Write the proportion equation
   9,156 : 12,422 = 12,422 : x
2. Step 2: Convert to fraction form
   9,156/12,422 = 12,422/x
3. Step 3: Cross multiply
   9,156x = 12,422 × 12,422
4. Step 4: Simplify right side
   9,156x = 154,306,084
5. Step 5: Solve for x
   x = 154,306,084/9,156
6. Step 6: Final answer
   x = 16,853.00