Finding the Third Proportional to 2,578,388 and 5,464,125

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578,388 : 5,464,125 = 5,464,125 : x
2. Step 2: Convert to fraction form
   2,578,388/5,464,125 = 5,464,125/x
3. Step 3: Cross multiply
   2,578,388x = 5,464,125 × 5,464,125
4. Step 4: Simplify right side
   2,578,388x = 29,856,662,015,625
5. Step 5: Solve for x
   x = 29,856,662,015,625/2,578,388
6. Step 6: Final answer
   x = 11,579,584.61