Finding the Third Proportional to 3,256,215 and 4,786,780

Step by Step Solution

1. Step 1: Write the proportion equation
   3,256,215 : 4,786,780 = 4,786,780 : x
2. Step 2: Convert to fraction form
   3,256,215/4,786,780 = 4,786,780/x
3. Step 3: Cross multiply
   3,256,215x = 4,786,780 × 4,786,780
4. Step 4: Simplify right side
   3,256,215x = 22,913,262,768,400
5. Step 5: Solve for x
   x = 22,913,262,768,400/3,256,215
6. Step 6: Final answer
   x = 7,036,778.21