Finding the Third Proportional to 2,514,510 and 5,430,780

Step by Step Solution

1. Step 1: Write the proportion equation
   2,514,510 : 5,430,780 = 5,430,780 : x
2. Step 2: Convert to fraction form
   2,514,510/5,430,780 = 5,430,780/x
3. Step 3: Cross multiply
   2,514,510x = 5,430,780 × 5,430,780
4. Step 4: Simplify right side
   2,514,510x = 29,493,371,408,400
5. Step 5: Solve for x
   x = 29,493,371,408,400/2,514,510
6. Step 6: Final answer
   x = 11,729,271.87