Finding the Third Proportional to 2,143,806 and 3,412,509

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,806 : 3,412,509 = 3,412,509 : x
2. Step 2: Convert to fraction form
   2,143,806/3,412,509 = 3,412,509/x
3. Step 3: Cross multiply
   2,143,806x = 3,412,509 × 3,412,509
4. Step 4: Simplify right side
   2,143,806x = 11,645,217,675,081
5. Step 5: Solve for x
   x = 11,645,217,675,081/2,143,806
6. Step 6: Final answer
   x = 5,432,029.61