Finding the Third Proportional to 140,039 and 215,250

Step by Step Solution

1. Step 1: Write the proportion equation
   140,039 : 215,250 = 215,250 : x
2. Step 2: Convert to fraction form
   140,039/215,250 = 215,250/x
3. Step 3: Cross multiply
   140,039x = 215,250 × 215,250
4. Step 4: Simplify right side
   140,039x = 46,332,562,500
5. Step 5: Solve for x
   x = 46,332,562,500/140,039
6. Step 6: Final answer
   x = 330,854.71