Finding the Third Proportional to 11,156 and 16,860

Step by Step Solution

1. Step 1: Write the proportion equation
   11,156 : 16,860 = 16,860 : x
2. Step 2: Convert to fraction form
   11,156/16,860 = 16,860/x
3. Step 3: Cross multiply
   11,156x = 16,860 × 16,860
4. Step 4: Simplify right side
   11,156x = 284,259,600
5. Step 5: Solve for x
   x = 284,259,600/11,156
6. Step 6: Final answer
   x = 25,480.42