Finding the Third Proportional to 644,416 and 1,412,774

Step by Step Solution

1. Step 1: Write the proportion equation
   644,416 : 1,412,774 = 1,412,774 : x
2. Step 2: Convert to fraction form
   644,416/1,412,774 = 1,412,774/x
3. Step 3: Cross multiply
   644,416x = 1,412,774 × 1,412,774
4. Step 4: Simplify right side
   644,416x = 1,995,930,375,076
5. Step 5: Solve for x
   x = 1,995,930,375,076/644,416
6. Step 6: Final answer
   x = 3,097,270.05