Finding the Third Proportional to 1,279,804 and 2,800,664

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279,804 : 2,800,664 = 2,800,664 : x
2. Step 2: Convert to fraction form
   1,279,804/2,800,664 = 2,800,664/x
3. Step 3: Cross multiply
   1,279,804x = 2,800,664 × 2,800,664
4. Step 4: Simplify right side
   1,279,804x = 7,843,718,840,896
5. Step 5: Solve for x
   x = 7,843,718,840,896/1,279,804
6. Step 6: Final answer
   x = 6,128,843.82