Finding the Third Proportional to 140,028.75 and 215,233.88

Step by Step Solution

1. Step 1: Write the proportion equation
   140,028.75 : 215,233.88 = 215,233.88 : x
2. Step 2: Convert to fraction form
   140,028.75/215,233.88 = 215,233.88/x
3. Step 3: Cross multiply
   140,028.75x = 215,233.88 × 215,233.88
4. Step 4: Simplify right side
   140,028.75x = 46,325,620,947.52
5. Step 5: Solve for x
   x = 46,325,620,947.52/140,028.75
6. Step 6: Final answer
   x = 330,829.35