Finding the Third Proportional to 1,128,642 and 2,412,588

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128,642 : 2,412,588 = 2,412,588 : x
2. Step 2: Convert to fraction form
   1,128,642/2,412,588 = 2,412,588/x
3. Step 3: Cross multiply
   1,128,642x = 2,412,588 × 2,412,588
4. Step 4: Simplify right side
   1,128,642x = 5,820,580,857,744
5. Step 5: Solve for x
   x = 5,820,580,857,744/1,128,642
6. Step 6: Final answer
   x = 5,157,154.22