Finding the Third Proportional to 664,444 and 1,450,678

Step by Step Solution

1. Step 1: Write the proportion equation
   664,444 : 1,450,678 = 1,450,678 : x
2. Step 2: Convert to fraction form
   664,444/1,450,678 = 1,450,678/x
3. Step 3: Cross multiply
   664,444x = 1,450,678 × 1,450,678
4. Step 4: Simplify right side
   664,444x = 2,104,466,659,684
5. Step 5: Solve for x
   x = 2,104,466,659,684/664,444
6. Step 6: Final answer
   x = 3,167,259.63