Finding the Third Proportional to 1,198,820 and 2,568,636

Step by Step Solution

1. Step 1: Write the proportion equation
   1,198,820 : 2,568,636 = 2,568,636 : x
2. Step 2: Convert to fraction form
   1,198,820/2,568,636 = 2,568,636/x
3. Step 3: Cross multiply
   1,198,820x = 2,568,636 × 2,568,636
4. Step 4: Simplify right side
   1,198,820x = 6,597,890,900,496
5. Step 5: Solve for x
   x = 6,597,890,900,496/1,198,820
6. Step 6: Final answer
   x = 5,503,654.34