Finding the Third Proportional to 1,278,717 and 2,734,749

Step by Step Solution

1. Step 1: Write the proportion equation
   1,278,717 : 2,734,749 = 2,734,749 : x
2. Step 2: Convert to fraction form
   1,278,717/2,734,749 = 2,734,749/x
3. Step 3: Cross multiply
   1,278,717x = 2,734,749 × 2,734,749
4. Step 4: Simplify right side
   1,278,717x = 7,478,852,093,001
5. Step 5: Solve for x
   x = 7,478,852,093,001/1,278,717
6. Step 6: Final answer
   x = 5,848,715.62