Finding the Third Proportional to 2,492,992 and 5,457,728

Step by Step Solution

1. Step 1: Write the proportion equation
   2,492,992 : 5,457,728 = 5,457,728 : x
2. Step 2: Convert to fraction form
   2,492,992/5,457,728 = 5,457,728/x
3. Step 3: Cross multiply
   2,492,992x = 5,457,728 × 5,457,728
4. Step 4: Simplify right side
   2,492,992x = 29,786,794,921,984
5. Step 5: Solve for x
   x = 29,786,794,921,984/2,492,992
6. Step 6: Final answer
   x = 11,948,211.19