Finding the Third Proportional to 3,908,879 and 5,979,567

Step by Step Solution

1. Step 1: Write the proportion equation
   3,908,879 : 5,979,567 = 5,979,567 : x
2. Step 2: Convert to fraction form
   3,908,879/5,979,567 = 5,979,567/x
3. Step 3: Cross multiply
   3,908,879x = 5,979,567 × 5,979,567
4. Step 4: Simplify right side
   3,908,879x = 35,755,221,507,489
5. Step 5: Solve for x
   x = 35,755,221,507,489/3,908,879
6. Step 6: Final answer
   x = 9,147,180.43