Finding the Third Proportional to 2,143,694 and 3,412,341

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,694 : 3,412,341 = 3,412,341 : x
2. Step 2: Convert to fraction form
   2,143,694/3,412,341 = 3,412,341/x
3. Step 3: Cross multiply
   2,143,694x = 3,412,341 × 3,412,341
4. Step 4: Simplify right side
   2,143,694x = 11,644,071,100,281
5. Step 5: Solve for x
   x = 11,644,071,100,281/2,143,694
6. Step 6: Final answer
   x = 5,431,778.56