Finding the Third Proportional to 485,123 and 1,020,517

Step by Step Solution

1. Step 1: Write the proportion equation
   485,123 : 1,020,517 = 1,020,517 : x
2. Step 2: Convert to fraction form
   485,123/1,020,517 = 1,020,517/x
3. Step 3: Cross multiply
   485,123x = 1,020,517 × 1,020,517
4. Step 4: Simplify right side
   485,123x = 1,041,454,947,289
5. Step 5: Solve for x
   x = 1,041,454,947,289/485,123
6. Step 6: Final answer
   x = 2,146,785.35