Finding the Third Proportional to 664,740 and 1,449,756

Step by Step Solution

1. Step 1: Write the proportion equation
   664,740 : 1,449,756 = 1,449,756 : x
2. Step 2: Convert to fraction form
   664,740/1,449,756 = 1,449,756/x
3. Step 3: Cross multiply
   664,740x = 1,449,756 × 1,449,756
4. Step 4: Simplify right side
   664,740x = 2,101,792,459,536
5. Step 5: Solve for x
   x = 2,101,792,459,536/664,740
6. Step 6: Final answer
   x = 3,161,826.37