Finding the Third Proportional to 1,279,718 and 2,800,492

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279,718 : 2,800,492 = 2,800,492 : x
2. Step 2: Convert to fraction form
   1,279,718/2,800,492 = 2,800,492/x
3. Step 3: Cross multiply
   1,279,718x = 2,800,492 × 2,800,492
4. Step 4: Simplify right side
   1,279,718x = 7,842,755,442,064
5. Step 5: Solve for x
   x = 7,842,755,442,064/1,279,718
6. Step 6: Final answer
   x = 6,128,502.87