Finding the Third Proportional to 425,673 and 634,819.50

Step by Step Solution

1. Step 1: Write the proportion equation
   425,673 : 634,819.50 = 634,819.50 : x
2. Step 2: Convert to fraction form
   425,673/634,819.50 = 634,819.50/x
3. Step 3: Cross multiply
   425,673x = 634,819.50 × 634,819.50
4. Step 4: Simplify right side
   425,673x = 402,995,797,580.25
5. Step 5: Solve for x
   x = 402,995,797,580.25/425,673
6. Step 6: Final answer
   x = 946,726.24