Finding the Third Proportional to 2,161,992 and 5,004,420

Step by Step Solution

1. Step 1: Write the proportion equation
   2,161,992 : 5,004,420 = 5,004,420 : x
2. Step 2: Convert to fraction form
   2,161,992/5,004,420 = 5,004,420/x
3. Step 3: Cross multiply
   2,161,992x = 5,004,420 × 5,004,420
4. Step 4: Simplify right side
   2,161,992x = 25,044,219,536,400
5. Step 5: Solve for x
   x = 25,044,219,536,400/2,161,992
6. Step 6: Final answer
   x = 11,583,863.19