Finding the Third Proportional to 1,278,520 and 2,756,300

Step by Step Solution

1. Step 1: Write the proportion equation
   1,278,520 : 2,756,300 = 2,756,300 : x
2. Step 2: Convert to fraction form
   1,278,520/2,756,300 = 2,756,300/x
3. Step 3: Cross multiply
   1,278,520x = 2,756,300 × 2,756,300
4. Step 4: Simplify right side
   1,278,520x = 7,597,189,690,000
5. Step 5: Solve for x
   x = 7,597,189,690,000/1,278,520
6. Step 6: Final answer
   x = 5,942,175.09