Finding the Third Proportional to 1,198,840 and 2,568,680

Step by Step Solution

1. Step 1: Write the proportion equation
   1,198,840 : 2,568,680 = 2,568,680 : x
2. Step 2: Convert to fraction form
   1,198,840/2,568,680 = 2,568,680/x
3. Step 3: Cross multiply
   1,198,840x = 2,568,680 × 2,568,680
4. Step 4: Simplify right side
   1,198,840x = 6,598,116,942,400
5. Step 5: Solve for x
   x = 6,598,116,942,400/1,198,840
6. Step 6: Final answer
   x = 5,503,751.08