Finding the Third Proportional to 4,065,799 and 5,420,330

Step by Step Solution

1. Step 1: Write the proportion equation
   4,065,799 : 5,420,330 = 5,420,330 : x
2. Step 2: Convert to fraction form
   4,065,799/5,420,330 = 5,420,330/x
3. Step 3: Cross multiply
   4,065,799x = 5,420,330 × 5,420,330
4. Step 4: Simplify right side
   4,065,799x = 29,379,977,308,900
5. Step 5: Solve for x
   x = 29,379,977,308,900/4,065,799
6. Step 6: Final answer
   x = 7,226,126.36