Finding the Third Proportional to 5,289,462 and 7,856,424

Step by Step Solution

1. Step 1: Write the proportion equation
   5,289,462 : 7,856,424 = 7,856,424 : x
2. Step 2: Convert to fraction form
   5,289,462/7,856,424 = 7,856,424/x
3. Step 3: Cross multiply
   5,289,462x = 7,856,424 × 7,856,424
4. Step 4: Simplify right side
   5,289,462x = 61,723,398,067,776
5. Step 5: Solve for x
   x = 61,723,398,067,776/5,289,462
6. Step 6: Final answer
   x = 11,669,125.91