Finding the Third Proportional to 3,579,976 and 5,421,960

Step by Step Solution

1. Step 1: Write the proportion equation
   3,579,976 : 5,421,960 = 5,421,960 : x
2. Step 2: Convert to fraction form
   3,579,976/5,421,960 = 5,421,960/x
3. Step 3: Cross multiply
   3,579,976x = 5,421,960 × 5,421,960
4. Step 4: Simplify right side
   3,579,976x = 29,397,650,241,600
5. Step 5: Solve for x
   x = 29,397,650,241,600/3,579,976
6. Step 6: Final answer
   x = 8,211,689.20