Finding the Third Proportional to 2,488,997 and 5,428,503

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488,997 : 5,428,503 = 5,428,503 : x
2. Step 2: Convert to fraction form
   2,488,997/5,428,503 = 5,428,503/x
3. Step 3: Cross multiply
   2,488,997x = 5,428,503 × 5,428,503
4. Step 4: Simplify right side
   2,488,997x = 29,468,644,821,009
5. Step 5: Solve for x
   x = 29,468,644,821,009/2,488,997
6. Step 6: Final answer
   x = 11,839,566.23