Finding the Third Proportional to 2,220,603 and 4,778,004

Step by Step Solution

1. Step 1: Write the proportion equation
   2,220,603 : 4,778,004 = 4,778,004 : x
2. Step 2: Convert to fraction form
   2,220,603/4,778,004 = 4,778,004/x
3. Step 3: Cross multiply
   2,220,603x = 4,778,004 × 4,778,004
4. Step 4: Simplify right side
   2,220,603x = 22,829,322,224,016
5. Step 5: Solve for x
   x = 22,829,322,224,016/2,220,603
6. Step 6: Final answer
   x = 10,280,686.02