Finding the Third Proportional to 1,335,780 and 2,068,686

Step by Step Solution

1. Step 1: Write the proportion equation
   1,335,780 : 2,068,686 = 2,068,686 : x
2. Step 2: Convert to fraction form
   1,335,780/2,068,686 = 2,068,686/x
3. Step 3: Cross multiply
   1,335,780x = 2,068,686 × 2,068,686
4. Step 4: Simplify right side
   1,335,780x = 4,279,461,766,596
5. Step 5: Solve for x
   x = 4,279,461,766,596/1,335,780
6. Step 6: Final answer
   x = 3,203,717.50