Finding the Third Proportional to 146,103.75 and 315,535.50

Step by Step Solution

1. Step 1: Write the proportion equation
   146,103.75 : 315,535.50 = 315,535.50 : x
2. Step 2: Convert to fraction form
   146,103.75/315,535.50 = 315,535.50/x
3. Step 3: Cross multiply
   146,103.75x = 315,535.50 × 315,535.50
4. Step 4: Simplify right side
   146,103.75x = 99,562,651,760.25
5. Step 5: Solve for x
   x = 99,562,651,760.25/146,103.75
6. Step 6: Final answer
   x = 681,451.72