Finding the Third Proportional to 605,673 and 1,317,420

Step by Step Solution

1. Step 1: Write the proportion equation
   605,673 : 1,317,420 = 1,317,420 : x
2. Step 2: Convert to fraction form
   605,673/1,317,420 = 1,317,420/x
3. Step 3: Cross multiply
   605,673x = 1,317,420 × 1,317,420
4. Step 4: Simplify right side
   605,673x = 1,735,595,456,400
5. Step 5: Solve for x
   x = 1,735,595,456,400/605,673
6. Step 6: Final answer
   x = 2,865,565.18