Finding the Third Proportional to 16,929 and 39,018

Step by Step Solution

1. Step 1: Write the proportion equation
   16,929 : 39,018 = 39,018 : x
2. Step 2: Convert to fraction form
   16,929/39,018 = 39,018/x
3. Step 3: Cross multiply
   16,929x = 39,018 × 39,018
4. Step 4: Simplify right side
   16,929x = 1,522,404,324
5. Step 5: Solve for x
   x = 1,522,404,324/16,929
6. Step 6: Final answer
   x = 89,928.78