Finding the Third Proportional to 615,450 and 1,279,824

Step by Step Solution

1. Step 1: Write the proportion equation
   615,450 : 1,279,824 = 1,279,824 : x
2. Step 2: Convert to fraction form
   615,450/1,279,824 = 1,279,824/x
3. Step 3: Cross multiply
   615,450x = 1,279,824 × 1,279,824
4. Step 4: Simplify right side
   615,450x = 1,637,949,470,976
5. Step 5: Solve for x
   x = 1,637,949,470,976/615,450
6. Step 6: Final answer
   x = 2,661,385.12