Finding the Third Proportional to 9,682 and 12,939

Step by Step Solution

1. Step 1: Write the proportion equation
   9,682 : 12,939 = 12,939 : x
2. Step 2: Convert to fraction form
   9,682/12,939 = 12,939/x
3. Step 3: Cross multiply
   9,682x = 12,939 × 12,939
4. Step 4: Simplify right side
   9,682x = 167,417,721
5. Step 5: Solve for x
   x = 167,417,721/9,682
6. Step 6: Final answer
   x = 17,291.65