Finding the Third Proportional to 140,013 and 307,243.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,013 : 307,243.50 = 307,243.50 : x
2. Step 2: Convert to fraction form
   140,013/307,243.50 = 307,243.50/x
3. Step 3: Cross multiply
   140,013x = 307,243.50 × 307,243.50
4. Step 4: Simplify right side
   140,013x = 94,398,568,292.25
5. Step 5: Solve for x
   x = 94,398,568,292.25/140,013
6. Step 6: Final answer
   x = 674,212.88