Finding the Third Proportional to 80,619.75 and 188,260.31

Step by Step Solution

1. Step 1: Write the proportion equation
   80,619.75 : 188,260.31 = 188,260.31 : x
2. Step 2: Convert to fraction form
   80,619.75/188,260.31 = 188,260.31/x
3. Step 3: Cross multiply
   80,619.75x = 188,260.31 × 188,260.31
4. Step 4: Simplify right side
   80,619.75x = 35,441,945,262.60
5. Step 5: Solve for x
   x = 35,441,945,262.60/80,619.75
6. Step 6: Final answer
   x = 439,618.65