Finding the Third Proportional to 1,248,566 and 2,686,626

Step by Step Solution

1. Step 1: Write the proportion equation
   1,248,566 : 2,686,626 = 2,686,626 : x
2. Step 2: Convert to fraction form
   1,248,566/2,686,626 = 2,686,626/x
3. Step 3: Cross multiply
   1,248,566x = 2,686,626 × 2,686,626
4. Step 4: Simplify right side
   1,248,566x = 7,217,959,263,876
5. Step 5: Solve for x
   x = 7,217,959,263,876/1,248,566
6. Step 6: Final answer
   x = 5,780,999.37