Finding the Third Proportional to 4,066,379 and 5,421,234

Step by Step Solution

1. Step 1: Write the proportion equation
   4,066,379 : 5,421,234 = 5,421,234 : x
2. Step 2: Convert to fraction form
   4,066,379/5,421,234 = 5,421,234/x
3. Step 3: Cross multiply
   4,066,379x = 5,421,234 × 5,421,234
4. Step 4: Simplify right side
   4,066,379x = 29,389,778,082,756
5. Step 5: Solve for x
   x = 29,389,778,082,756/4,066,379
6. Step 6: Final answer
   x = 7,227,505.87