Finding the Third Proportional to 1,279,290 and 2,757,860

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279,290 : 2,757,860 = 2,757,860 : x
2. Step 2: Convert to fraction form
   1,279,290/2,757,860 = 2,757,860/x
3. Step 3: Cross multiply
   1,279,290x = 2,757,860 × 2,757,860
4. Step 4: Simplify right side
   1,279,290x = 7,605,791,779,600
5. Step 5: Solve for x
   x = 7,605,791,779,600/1,279,290
6. Step 6: Final answer
   x = 5,945,322.62