Finding the Third Proportional to 1,278,518 and 2,756,299

Step by Step Solution

1. Step 1: Write the proportion equation
   1,278,518 : 2,756,299 = 2,756,299 : x
2. Step 2: Convert to fraction form
   1,278,518/2,756,299 = 2,756,299/x
3. Step 3: Cross multiply
   1,278,518x = 2,756,299 × 2,756,299
4. Step 4: Simplify right side
   1,278,518x = 7,597,184,177,401
5. Step 5: Solve for x
   x = 7,597,184,177,401/1,278,518
6. Step 6: Final answer
   x = 5,942,180.07