Finding the Third Proportional to 4,698,648 and 10,143,792

Step by Step Solution

1. Step 1: Write the proportion equation
   4,698,648 : 10,143,792 = 10,143,792 : x
2. Step 2: Convert to fraction form
   4,698,648/10,143,792 = 10,143,792/x
3. Step 3: Cross multiply
   4,698,648x = 10,143,792 × 10,143,792
4. Step 4: Simplify right side
   4,698,648x = 102,896,516,139,264
5. Step 5: Solve for x
   x = 102,896,516,139,264/4,698,648
6. Step 6: Final answer
   x = 21,899,175.28