Finding the Third Proportional to 1,286,840 and 2,785,504

Step by Step Solution

1. Step 1: Write the proportion equation
   1,286,840 : 2,785,504 = 2,785,504 : x
2. Step 2: Convert to fraction form
   1,286,840/2,785,504 = 2,785,504/x
3. Step 3: Cross multiply
   1,286,840x = 2,785,504 × 2,785,504
4. Step 4: Simplify right side
   1,286,840x = 7,759,032,534,016
5. Step 5: Solve for x
   x = 7,759,032,534,016/1,286,840
6. Step 6: Final answer
   x = 6,029,523.90