Finding the Third Proportional to 664,642 and 1,449,584

Step by Step Solution

1. Step 1: Write the proportion equation
   664,642 : 1,449,584 = 1,449,584 : x
2. Step 2: Convert to fraction form
   664,642/1,449,584 = 1,449,584/x
3. Step 3: Cross multiply
   664,642x = 1,449,584 × 1,449,584
4. Step 4: Simplify right side
   664,642x = 2,101,293,773,056
5. Step 5: Solve for x
   x = 2,101,293,773,056/664,642
6. Step 6: Final answer
   x = 3,161,542.26