Finding the Third Proportional to 4,627,728 and 9,480,960

Step by Step Solution

1. Step 1: Write the proportion equation
   4,627,728 : 9,480,960 = 9,480,960 : x
2. Step 2: Convert to fraction form
   4,627,728/9,480,960 = 9,480,960/x
3. Step 3: Cross multiply
   4,627,728x = 9,480,960 × 9,480,960
4. Step 4: Simplify right side
   4,627,728x = 89,888,602,521,600
5. Step 5: Solve for x
   x = 89,888,602,521,600/4,627,728
6. Step 6: Final answer
   x = 19,423,916.56