Finding the Third Proportional to 1,921,104 and 4,140,144

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921,104 : 4,140,144 = 4,140,144 : x
2. Step 2: Convert to fraction form
   1,921,104/4,140,144 = 4,140,144/x
3. Step 3: Cross multiply
   1,921,104x = 4,140,144 × 4,140,144
4. Step 4: Simplify right side
   1,921,104x = 17,140,792,340,736
5. Step 5: Solve for x
   x = 17,140,792,340,736/1,921,104
6. Step 6: Final answer
   x = 8,922,365.65