Finding the Third Proportional to 664,656 and 1,449,612

Step by Step Solution

1. Step 1: Write the proportion equation
   664,656 : 1,449,612 = 1,449,612 : x
2. Step 2: Convert to fraction form
   664,656/1,449,612 = 1,449,612/x
3. Step 3: Cross multiply
   664,656x = 1,449,612 × 1,449,612
4. Step 4: Simplify right side
   664,656x = 2,101,374,950,544
5. Step 5: Solve for x
   x = 2,101,374,950,544/664,656
6. Step 6: Final answer
   x = 3,161,597.80