Finding the Third Proportional to 140,357.25 and 215,741.25

Step by Step Solution

1. Step 1: Write the proportion equation
   140,357.25 : 215,741.25 = 215,741.25 : x
2. Step 2: Convert to fraction form
   140,357.25/215,741.25 = 215,741.25/x
3. Step 3: Cross multiply
   140,357.25x = 215,741.25 × 215,741.25
4. Step 4: Simplify right side
   140,357.25x = 46,544,286,951.56
5. Step 5: Solve for x
   x = 46,544,286,951.56/140,357.25
6. Step 6: Final answer
   x = 331,612.99