Finding the Third Proportional to 4,322,398 and 9,405,884

Step by Step Solution

1. Step 1: Write the proportion equation
   4,322,398 : 9,405,884 = 9,405,884 : x
2. Step 2: Convert to fraction form
   4,322,398/9,405,884 = 9,405,884/x
3. Step 3: Cross multiply
   4,322,398x = 9,405,884 × 9,405,884
4. Step 4: Simplify right side
   4,322,398x = 88,470,653,821,456
5. Step 5: Solve for x
   x = 88,470,653,821,456/4,322,398
6. Step 6: Final answer
   x = 20,467,956.40