Finding the Third Proportional to 664,674 and 1,449,648

Step by Step Solution

1. Step 1: Write the proportion equation
   664,674 : 1,449,648 = 1,449,648 : x
2. Step 2: Convert to fraction form
   664,674/1,449,648 = 1,449,648/x
3. Step 3: Cross multiply
   664,674x = 1,449,648 × 1,449,648
4. Step 4: Simplify right side
   664,674x = 2,101,479,323,904
5. Step 5: Solve for x
   x = 2,101,479,323,904/664,674
6. Step 6: Final answer
   x = 3,161,669.22