Finding the Third Proportional to 5,775,976 and 8,979,870

Step by Step Solution

1. Step 1: Write the proportion equation
   5,775,976 : 8,979,870 = 8,979,870 : x
2. Step 2: Convert to fraction form
   5,775,976/8,979,870 = 8,979,870/x
3. Step 3: Cross multiply
   5,775,976x = 8,979,870 × 8,979,870
4. Step 4: Simplify right side
   5,775,976x = 80,638,065,216,900
5. Step 5: Solve for x
   x = 80,638,065,216,900/5,775,976
6. Step 6: Final answer
   x = 13,960,941.88