Finding the Third Proportional to 12,714 and 13,866

Step by Step Solution

1. Step 1: Write the proportion equation
   12,714 : 13,866 = 13,866 : x
2. Step 2: Convert to fraction form
   12,714/13,866 = 13,866/x
3. Step 3: Cross multiply
   12,714x = 13,866 × 13,866
4. Step 4: Simplify right side
   12,714x = 192,265,956
5. Step 5: Solve for x
   x = 192,265,956/12,714
6. Step 6: Final answer
   x = 15,122.38