Finding the Third Proportional to 623,384 and 1,363,408

Step by Step Solution

1. Step 1: Write the proportion equation
   623,384 : 1,363,408 = 1,363,408 : x
2. Step 2: Convert to fraction form
   623,384/1,363,408 = 1,363,408/x
3. Step 3: Cross multiply
   623,384x = 1,363,408 × 1,363,408
4. Step 4: Simplify right side
   623,384x = 1,858,881,374,464
5. Step 5: Solve for x
   x = 1,858,881,374,464/623,384
6. Step 6: Final answer
   x = 2,981,920.25