Finding the Third Proportional to 10,887 and 13,371

Step by Step Solution

1. Step 1: Write the proportion equation
   10,887 : 13,371 = 13,371 : x
2. Step 2: Convert to fraction form
   10,887/13,371 = 13,371/x
3. Step 3: Cross multiply
   10,887x = 13,371 × 13,371
4. Step 4: Simplify right side
   10,887x = 178,783,641
5. Step 5: Solve for x
   x = 178,783,641/10,887
6. Step 6: Final answer
   x = 16,421.75