Finding the Third Proportional to 8,650 and 13,422

Step by Step Solution

1. Step 1: Write the proportion equation
   8,650 : 13,422 = 13,422 : x
2. Step 2: Convert to fraction form
   8,650/13,422 = 13,422/x
3. Step 3: Cross multiply
   8,650x = 13,422 × 13,422
4. Step 4: Simplify right side
   8,650x = 180,150,084
5. Step 5: Solve for x
   x = 180,150,084/8,650
6. Step 6: Final answer
   x = 20,826.60