Finding the Third Proportional to 39,006.75 and 79,859.25

Step by Step Solution

1. Step 1: Write the proportion equation
   39,006.75 : 79,859.25 = 79,859.25 : x
2. Step 2: Convert to fraction form
   39,006.75/79,859.25 = 79,859.25/x
3. Step 3: Cross multiply
   39,006.75x = 79,859.25 × 79,859.25
4. Step 4: Simplify right side
   39,006.75x = 6,377,499,810.56
5. Step 5: Solve for x
   x = 6,377,499,810.56/39,006.75
6. Step 6: Final answer
   x = 163,497.34