Finding the Third Proportional to 80,399.25 and 118,189.88

Step by Step Solution

1. Step 1: Write the proportion equation
   80,399.25 : 118,189.88 = 118,189.88 : x
2. Step 2: Convert to fraction form
   80,399.25/118,189.88 = 118,189.88/x
3. Step 3: Cross multiply
   80,399.25x = 118,189.88 × 118,189.88
4. Step 4: Simplify right side
   80,399.25x = 13,968,846,552.52
5. Step 5: Solve for x
   x = 13,968,846,552.52/80,399.25
6. Step 6: Final answer
   x = 173,743.49