Finding the Third Proportional to 644,038 and 1,412,492

Step by Step Solution

1. Step 1: Write the proportion equation
   644,038 : 1,412,492 = 1,412,492 : x
2. Step 2: Convert to fraction form
   644,038/1,412,492 = 1,412,492/x
3. Step 3: Cross multiply
   644,038x = 1,412,492 × 1,412,492
4. Step 4: Simplify right side
   644,038x = 1,995,133,650,064
5. Step 5: Solve for x
   x = 1,995,133,650,064/644,038
6. Step 6: Final answer
   x = 3,097,850.83