Finding the Third Proportional to 140,578.50 and 303,300.75

Step by Step Solution

1. Step 1: Write the proportion equation
   140,578.50 : 303,300.75 = 303,300.75 : x
2. Step 2: Convert to fraction form
   140,578.50/303,300.75 = 303,300.75/x
3. Step 3: Cross multiply
   140,578.50x = 303,300.75 × 303,300.75
4. Step 4: Simplify right side
   140,578.50x = 91,991,344,950.56
5. Step 5: Solve for x
   x = 91,991,344,950.56/140,578.50
6. Step 6: Final answer
   x = 654,377.06