Finding the Third Proportional to 1,339,792 and 2,912,288

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339,792 : 2,912,288 = 2,912,288 : x
2. Step 2: Convert to fraction form
   1,339,792/2,912,288 = 2,912,288/x
3. Step 3: Cross multiply
   1,339,792x = 2,912,288 × 2,912,288
4. Step 4: Simplify right side
   1,339,792x = 8,481,421,394,944
5. Step 5: Solve for x
   x = 8,481,421,394,944/1,339,792
6. Step 6: Final answer
   x = 6,330,401.58