Finding the Third Proportional to 1,279,788 and 2,800,632

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279,788 : 2,800,632 = 2,800,632 : x
2. Step 2: Convert to fraction form
   1,279,788/2,800,632 = 2,800,632/x
3. Step 3: Cross multiply
   1,279,788x = 2,800,632 × 2,800,632
4. Step 4: Simplify right side
   1,279,788x = 7,843,539,599,424
5. Step 5: Solve for x
   x = 7,843,539,599,424/1,279,788
6. Step 6: Final answer
   x = 6,128,780.39