Finding the Third Proportional to 2,389,152 and 5,198,128

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389,152 : 5,198,128 = 5,198,128 : x
2. Step 2: Convert to fraction form
   2,389,152/5,198,128 = 5,198,128/x
3. Step 3: Cross multiply
   2,389,152x = 5,198,128 × 5,198,128
4. Step 4: Simplify right side
   2,389,152x = 27,020,534,704,384
5. Step 5: Solve for x
   x = 27,020,534,704,384/2,389,152
6. Step 6: Final answer
   x = 11,309,675.86