Finding the Third Proportional to 1,279,696 and 2,800,448

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279,696 : 2,800,448 = 2,800,448 : x
2. Step 2: Convert to fraction form
   1,279,696/2,800,448 = 2,800,448/x
3. Step 3: Cross multiply
   1,279,696x = 2,800,448 × 2,800,448
4. Step 4: Simplify right side
   1,279,696x = 7,842,509,000,704
5. Step 5: Solve for x
   x = 7,842,509,000,704/1,279,696
6. Step 6: Final answer
   x = 6,128,415.66