Finding the Third Proportional to 1,248,646 and 2,686,790

Step by Step Solution

1. Step 1: Write the proportion equation
   1,248,646 : 2,686,790 = 2,686,790 : x
2. Step 2: Convert to fraction form
   1,248,646/2,686,790 = 2,686,790/x
3. Step 3: Cross multiply
   1,248,646x = 2,686,790 × 2,686,790
4. Step 4: Simplify right side
   1,248,646x = 7,218,840,504,100
5. Step 5: Solve for x
   x = 7,218,840,504,100/1,248,646
6. Step 6: Final answer
   x = 5,781,334.75