Finding the Third Proportional to 1,336,720 and 2,068,408

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336,720 : 2,068,408 = 2,068,408 : x
2. Step 2: Convert to fraction form
   1,336,720/2,068,408 = 2,068,408/x
3. Step 3: Cross multiply
   1,336,720x = 2,068,408 × 2,068,408
4. Step 4: Simplify right side
   1,336,720x = 4,278,311,654,464
5. Step 5: Solve for x
   x = 4,278,311,654,464/1,336,720
6. Step 6: Final answer
   x = 3,200,604.21