Finding the Third Proportional to 1,290,830 and 2,805,544

Step by Step Solution

1. Step 1: Write the proportion equation
   1,290,830 : 2,805,544 = 2,805,544 : x
2. Step 2: Convert to fraction form
   1,290,830/2,805,544 = 2,805,544/x
3. Step 3: Cross multiply
   1,290,830x = 2,805,544 × 2,805,544
4. Step 4: Simplify right side
   1,290,830x = 7,871,077,135,936
5. Step 5: Solve for x
   x = 7,871,077,135,936/1,290,830
6. Step 6: Final answer
   x = 6,097,686.86