Finding the Third Proportional to 635,408 and 1,368,448

Step by Step Solution

1. Step 1: Write the proportion equation
   635,408 : 1,368,448 = 1,368,448 : x
2. Step 2: Convert to fraction form
   635,408/1,368,448 = 1,368,448/x
3. Step 3: Cross multiply
   635,408x = 1,368,448 × 1,368,448
4. Step 4: Simplify right side
   635,408x = 1,872,649,928,704
5. Step 5: Solve for x
   x = 1,872,649,928,704/635,408
6. Step 6: Final answer
   x = 2,947,161.40