Finding the Third Proportional to 1,279,762 and 2,800,580

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279,762 : 2,800,580 = 2,800,580 : x
2. Step 2: Convert to fraction form
   1,279,762/2,800,580 = 2,800,580/x
3. Step 3: Cross multiply
   1,279,762x = 2,800,580 × 2,800,580
4. Step 4: Simplify right side
   1,279,762x = 7,843,248,336,400
5. Step 5: Solve for x
   x = 7,843,248,336,400/1,279,762
6. Step 6: Final answer
   x = 6,128,677.31