Finding the Third Proportional to 1,188,642 and 2,571,018

Step by Step Solution

1. Step 1: Write the proportion equation
   1,188,642 : 2,571,018 = 2,571,018 : x
2. Step 2: Convert to fraction form
   1,188,642/2,571,018 = 2,571,018/x
3. Step 3: Cross multiply
   1,188,642x = 2,571,018 × 2,571,018
4. Step 4: Simplify right side
   1,188,642x = 6,610,133,556,324
5. Step 5: Solve for x
   x = 6,610,133,556,324/1,188,642
6. Step 6: Final answer
   x = 5,561,080.25