Finding the Third Proportional to 308,037.38 and 674,143.31

Step by Step Solution

1. Step 1: Write the proportion equation
   308,037.38 : 674,143.31 = 674,143.31 : x
2. Step 2: Convert to fraction form
   308,037.38/674,143.31 = 674,143.31/x
3. Step 3: Cross multiply
   308,037.38x = 674,143.31 × 674,143.31
4. Step 4: Simplify right side
   308,037.38x = 454,469,205,788.47
5. Step 5: Solve for x
   x = 454,469,205,788.47/308,037.38
6. Step 6: Final answer
   x = 1,475,370.34