Finding the Third Proportional to 274,144.50 and 430,150.50

Step by Step Solution

1. Step 1: Write the proportion equation
   274,144.50 : 430,150.50 = 430,150.50 : x
2. Step 2: Convert to fraction form
   274,144.50/430,150.50 = 430,150.50/x
3. Step 3: Cross multiply
   274,144.50x = 430,150.50 × 430,150.50
4. Step 4: Simplify right side
   274,144.50x = 185,029,452,650.25
5. Step 5: Solve for x
   x = 185,029,452,650.25/274,144.50
6. Step 6: Final answer
   x = 674,934.03