Finding the Third Proportional to 12,478 and 16,610

Step by Step Solution

1. Step 1: Write the proportion equation
   12,478 : 16,610 = 16,610 : x
2. Step 2: Convert to fraction form
   12,478/16,610 = 16,610/x
3. Step 3: Cross multiply
   12,478x = 16,610 × 16,610
4. Step 4: Simplify right side
   12,478x = 275,892,100
5. Step 5: Solve for x
   x = 275,892,100/12,478
6. Step 6: Final answer
   x = 22,110.28