Finding the Third Proportional to 1,018,517 and 2,120,710

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,517 : 2,120,710 = 2,120,710 : x
2. Step 2: Convert to fraction form
   1,018,517/2,120,710 = 2,120,710/x
3. Step 3: Cross multiply
   1,018,517x = 2,120,710 × 2,120,710
4. Step 4: Simplify right side
   1,018,517x = 4,497,410,904,100
5. Step 5: Solve for x
   x = 4,497,410,904,100/1,018,517
6. Step 6: Final answer
   x = 4,415,646.38