Finding the Third Proportional to 81,870.75 and 179,809.88

Step by Step Solution

1. Step 1: Write the proportion equation
   81,870.75 : 179,809.88 = 179,809.88 : x
2. Step 2: Convert to fraction form
   81,870.75/179,809.88 = 179,809.88/x
3. Step 3: Cross multiply
   81,870.75x = 179,809.88 × 179,809.88
4. Step 4: Simplify right side
   81,870.75x = 32,331,591,147.52
5. Step 5: Solve for x
   x = 32,331,591,147.52/81,870.75
6. Step 6: Final answer
   x = 394,910.16