Finding the Third Proportional to 425,484 and 629,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   425,484 : 629,815.50 = 629,815.50 : x
2. Step 2: Convert to fraction form
   425,484/629,815.50 = 629,815.50/x
3. Step 3: Cross multiply
   425,484x = 629,815.50 × 629,815.50
4. Step 4: Simplify right side
   425,484x = 396,667,564,040.25
5. Step 5: Solve for x
   x = 396,667,564,040.25/425,484
6. Step 6: Final answer
   x = 932,273.75