Finding the Third Proportional to 1,378,779 and 2,978,922

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378,779 : 2,978,922 = 2,978,922 : x
2. Step 2: Convert to fraction form
   1,378,779/2,978,922 = 2,978,922/x
3. Step 3: Cross multiply
   1,378,779x = 2,978,922 × 2,978,922
4. Step 4: Simplify right side
   1,378,779x = 8,873,976,282,084
5. Step 5: Solve for x
   x = 8,873,976,282,084/1,378,779
6. Step 6: Final answer
   x = 6,436,112.16