Finding the Third Proportional to 1,128,644 and 2,412,592

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128,644 : 2,412,592 = 2,412,592 : x
2. Step 2: Convert to fraction form
   1,128,644/2,412,592 = 2,412,592/x
3. Step 3: Cross multiply
   1,128,644x = 2,412,592 × 2,412,592
4. Step 4: Simplify right side
   1,128,644x = 5,820,600,158,464
5. Step 5: Solve for x
   x = 5,820,600,158,464/1,128,644
6. Step 6: Final answer
   x = 5,157,162.19