Finding the Third Proportional to 4,483,284 and 9,728,648

Step by Step Solution

1. Step 1: Write the proportion equation
   4,483,284 : 9,728,648 = 9,728,648 : x
2. Step 2: Convert to fraction form
   4,483,284/9,728,648 = 9,728,648/x
3. Step 3: Cross multiply
   4,483,284x = 9,728,648 × 9,728,648
4. Step 4: Simplify right side
   4,483,284x = 94,646,591,907,904
5. Step 5: Solve for x
   x = 94,646,591,907,904/4,483,284
6. Step 6: Final answer
   x = 21,110,996.29