Finding the Third Proportional to 677,826 and 1,338,644

Step by Step Solution

1. Step 1: Write the proportion equation
   677,826 : 1,338,644 = 1,338,644 : x
2. Step 2: Convert to fraction form
   677,826/1,338,644 = 1,338,644/x
3. Step 3: Cross multiply
   677,826x = 1,338,644 × 1,338,644
4. Step 4: Simplify right side
   677,826x = 1,791,967,758,736
5. Step 5: Solve for x
   x = 1,791,967,758,736/677,826
6. Step 6: Final answer
   x = 2,643,698.76