Finding the Third Proportional to 9,917 and 13,599

Step by Step Solution

1. Step 1: Write the proportion equation
   9,917 : 13,599 = 13,599 : x
2. Step 2: Convert to fraction form
   9,917/13,599 = 13,599/x
3. Step 3: Cross multiply
   9,917x = 13,599 × 13,599
4. Step 4: Simplify right side
   9,917x = 184,932,801
5. Step 5: Solve for x
   x = 184,932,801/9,917
6. Step 6: Final answer
   x = 18,648.06