Finding the Third Proportional to 155,739.38 and 335,171.25

Step by Step Solution

1. Step 1: Write the proportion equation
   155,739.38 : 335,171.25 = 335,171.25 : x
2. Step 2: Convert to fraction form
   155,739.38/335,171.25 = 335,171.25/x
3. Step 3: Cross multiply
   155,739.38x = 335,171.25 × 335,171.25
4. Step 4: Simplify right side
   155,739.38x = 112,339,766,826.56
5. Step 5: Solve for x
   x = 112,339,766,826.56/155,739.38
6. Step 6: Final answer
   x = 721,331.82