Finding the Third Proportional to 677,678 and 1,411,496

Step by Step Solution

1. Step 1: Write the proportion equation
   677,678 : 1,411,496 = 1,411,496 : x
2. Step 2: Convert to fraction form
   677,678/1,411,496 = 1,411,496/x
3. Step 3: Cross multiply
   677,678x = 1,411,496 × 1,411,496
4. Step 4: Simplify right side
   677,678x = 1,992,320,958,016
5. Step 5: Solve for x
   x = 1,992,320,958,016/677,678
6. Step 6: Final answer
   x = 2,939,922.73