Finding the Third Proportional to 1,108,128 and 2,391,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,108,128 : 2,391,216 = 2,391,216 : x
2. Step 2: Convert to fraction form
   1,108,128/2,391,216 = 2,391,216/x
3. Step 3: Cross multiply
   1,108,128x = 2,391,216 × 2,391,216
4. Step 4: Simplify right side
   1,108,128x = 5,717,913,958,656
5. Step 5: Solve for x
   x = 5,717,913,958,656/1,108,128
6. Step 6: Final answer
   x = 5,159,976.07