Finding the Third Proportional to 1,323,216 and 2,870,478

Step by Step Solution

1. Step 1: Write the proportion equation
   1,323,216 : 2,870,478 = 2,870,478 : x
2. Step 2: Convert to fraction form
   1,323,216/2,870,478 = 2,870,478/x
3. Step 3: Cross multiply
   1,323,216x = 2,870,478 × 2,870,478
4. Step 4: Simplify right side
   1,323,216x = 8,239,643,948,484
5. Step 5: Solve for x
   x = 8,239,643,948,484/1,323,216
6. Step 6: Final answer
   x = 6,226,983.31