Finding the Third Proportional to 1,290,606 and 2,004,939

Step by Step Solution

1. Step 1: Write the proportion equation
   1,290,606 : 2,004,939 = 2,004,939 : x
2. Step 2: Convert to fraction form
   1,290,606/2,004,939 = 2,004,939/x
3. Step 3: Cross multiply
   1,290,606x = 2,004,939 × 2,004,939
4. Step 4: Simplify right side
   1,290,606x = 4,019,780,393,721
5. Step 5: Solve for x
   x = 4,019,780,393,721/1,290,606
6. Step 6: Final answer
   x = 3,114,645.67