Finding the Third Proportional to 1,369,842 and 2,181,612

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369,842 : 2,181,612 = 2,181,612 : x
2. Step 2: Convert to fraction form
   1,369,842/2,181,612 = 2,181,612/x
3. Step 3: Cross multiply
   1,369,842x = 2,181,612 × 2,181,612
4. Step 4: Simplify right side
   1,369,842x = 4,759,430,918,544
5. Step 5: Solve for x
   x = 4,759,430,918,544/1,369,842
6. Step 6: Final answer
   x = 3,474,437.87