Finding the Third Proportional to 1,278,162 and 2,781,828

Step by Step Solution

1. Step 1: Write the proportion equation
   1,278,162 : 2,781,828 = 2,781,828 : x
2. Step 2: Convert to fraction form
   1,278,162/2,781,828 = 2,781,828/x
3. Step 3: Cross multiply
   1,278,162x = 2,781,828 × 2,781,828
4. Step 4: Simplify right side
   1,278,162x = 7,738,567,021,584
5. Step 5: Solve for x
   x = 7,738,567,021,584/1,278,162
6. Step 6: Final answer
   x = 6,054,449.30