Finding the Third Proportional to 3,453,456 and 7,327,728

Step by Step Solution

1. Step 1: Write the proportion equation
   3,453,456 : 7,327,728 = 7,327,728 : x
2. Step 2: Convert to fraction form
   3,453,456/7,327,728 = 7,327,728/x
3. Step 3: Cross multiply
   3,453,456x = 7,327,728 × 7,327,728
4. Step 4: Simplify right side
   3,453,456x = 53,695,597,641,984
5. Step 5: Solve for x
   x = 53,695,597,641,984/3,453,456
6. Step 6: Final answer
   x = 15,548,365.94