Finding the Third Proportional to 1,279,764 and 2,800,584

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279,764 : 2,800,584 = 2,800,584 : x
2. Step 2: Convert to fraction form
   1,279,764/2,800,584 = 2,800,584/x
3. Step 3: Cross multiply
   1,279,764x = 2,800,584 × 2,800,584
4. Step 4: Simplify right side
   1,279,764x = 7,843,270,741,056
5. Step 5: Solve for x
   x = 7,843,270,741,056/1,279,764
6. Step 6: Final answer
   x = 6,128,685.24