Finding the Third Proportional to 140,581.50 and 215,048.25

Step by Step Solution

1. Step 1: Write the proportion equation
   140,581.50 : 215,048.25 = 215,048.25 : x
2. Step 2: Convert to fraction form
   140,581.50/215,048.25 = 215,048.25/x
3. Step 3: Cross multiply
   140,581.50x = 215,048.25 × 215,048.25
4. Step 4: Simplify right side
   140,581.50x = 46,245,749,828.06
5. Step 5: Solve for x
   x = 46,245,749,828.06/140,581.50
6. Step 6: Final answer
   x = 328,960.42