Finding the Third Proportional to 2,220,618 and 4,778,034

Step by Step Solution

1. Step 1: Write the proportion equation
   2,220,618 : 4,778,034 = 4,778,034 : x
2. Step 2: Convert to fraction form
   2,220,618/4,778,034 = 4,778,034/x
3. Step 3: Cross multiply
   2,220,618x = 4,778,034 × 4,778,034
4. Step 4: Simplify right side
   2,220,618x = 22,829,608,905,156
5. Step 5: Solve for x
   x = 22,829,608,905,156/2,220,618
6. Step 6: Final answer
   x = 10,280,745.68