Finding the Third Proportional to 8,887 and 13,398

Step by Step Solution

1. Step 1: Write the proportion equation
   8,887 : 13,398 = 13,398 : x
2. Step 2: Convert to fraction form
   8,887/13,398 = 13,398/x
3. Step 3: Cross multiply
   8,887x = 13,398 × 13,398
4. Step 4: Simplify right side
   8,887x = 179,506,404
5. Step 5: Solve for x
   x = 179,506,404/8,887
6. Step 6: Final answer
   x = 20,198.76