Finding the Third Proportional to 4,509,231 and 9,656,928

Step by Step Solution

1. Step 1: Write the proportion equation
   4,509,231 : 9,656,928 = 9,656,928 : x
2. Step 2: Convert to fraction form
   4,509,231/9,656,928 = 9,656,928/x
3. Step 3: Cross multiply
   4,509,231x = 9,656,928 × 9,656,928
4. Step 4: Simplify right side
   4,509,231x = 93,256,258,397,184
5. Step 5: Solve for x
   x = 93,256,258,397,184/4,509,231
6. Step 6: Final answer
   x = 20,681,188.96