Finding the Third Proportional to 140,034.50 and 215,243.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,034.50 : 215,243.50 = 215,243.50 : x
2. Step 2: Convert to fraction form
   140,034.50/215,243.50 = 215,243.50/x
3. Step 3: Cross multiply
   140,034.50x = 215,243.50 × 215,243.50
4. Step 4: Simplify right side
   140,034.50x = 46,329,764,292.25
5. Step 5: Solve for x
   x = 46,329,764,292.25/140,034.50
6. Step 6: Final answer
   x = 330,845.36