Finding the Third Proportional to 1,018,597 and 2,158,619

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,597 : 2,158,619 = 2,158,619 : x
2. Step 2: Convert to fraction form
   1,018,597/2,158,619 = 2,158,619/x
3. Step 3: Cross multiply
   1,018,597x = 2,158,619 × 2,158,619
4. Step 4: Simplify right side
   1,018,597x = 4,659,635,987,161
5. Step 5: Solve for x
   x = 4,659,635,987,161/1,018,597
6. Step 6: Final answer
   x = 4,574,562.84