Finding the Third Proportional to 1,057,560 and 2,186,256

Step by Step Solution

1. Step 1: Write the proportion equation
   1,057,560 : 2,186,256 = 2,186,256 : x
2. Step 2: Convert to fraction form
   1,057,560/2,186,256 = 2,186,256/x
3. Step 3: Cross multiply
   1,057,560x = 2,186,256 × 2,186,256
4. Step 4: Simplify right side
   1,057,560x = 4,779,715,297,536
5. Step 5: Solve for x
   x = 4,779,715,297,536/1,057,560
6. Step 6: Final answer
   x = 4,519,568.91