Finding the Third Proportional to 9,938 and 13,187

Step by Step Solution

1. Step 1: Write the proportion equation
   9,938 : 13,187 = 13,187 : x
2. Step 2: Convert to fraction form
   9,938/13,187 = 13,187/x
3. Step 3: Cross multiply
   9,938x = 13,187 × 13,187
4. Step 4: Simplify right side
   9,938x = 173,896,969
5. Step 5: Solve for x
   x = 173,896,969/9,938
6. Step 6: Final answer
   x = 17,498.19