Finding the Third Proportional to 9,918 and 12,753

Step by Step Solution

1. Step 1: Write the proportion equation
   9,918 : 12,753 = 12,753 : x
2. Step 2: Convert to fraction form
   9,918/12,753 = 12,753/x
3. Step 3: Cross multiply
   9,918x = 12,753 × 12,753
4. Step 4: Simplify right side
   9,918x = 162,639,009
5. Step 5: Solve for x
   x = 162,639,009/9,918
6. Step 6: Final answer
   x = 16,398.37