Finding the Third Proportional to 5,421,536 and 7,227,728

Step by Step Solution

1. Step 1: Write the proportion equation
   5,421,536 : 7,227,728 = 7,227,728 : x
2. Step 2: Convert to fraction form
   5,421,536/7,227,728 = 7,227,728/x
3. Step 3: Cross multiply
   5,421,536x = 7,227,728 × 7,227,728
4. Step 4: Simplify right side
   5,421,536x = 52,240,052,041,984
5. Step 5: Solve for x
   x = 52,240,052,041,984/5,421,536
6. Step 6: Final answer
   x = 9,635,655.29