Finding the Third Proportional to 5,149,746 and 7,790,886

Step by Step Solution

1. Step 1: Write the proportion equation
   5,149,746 : 7,790,886 = 7,790,886 : x
2. Step 2: Convert to fraction form
   5,149,746/7,790,886 = 7,790,886/x
3. Step 3: Cross multiply
   5,149,746x = 7,790,886 × 7,790,886
4. Step 4: Simplify right side
   5,149,746x = 60,697,904,664,996
5. Step 5: Solve for x
   x = 60,697,904,664,996/5,149,746
6. Step 6: Final answer
   x = 11,786,582.22