Finding the Third Proportional to 4,778,880 and 10,317,792

Step by Step Solution

1. Step 1: Write the proportion equation
   4,778,880 : 10,317,792 = 10,317,792 : x
2. Step 2: Convert to fraction form
   4,778,880/10,317,792 = 10,317,792/x
3. Step 3: Cross multiply
   4,778,880x = 10,317,792 × 10,317,792
4. Step 4: Simplify right side
   4,778,880x = 106,456,831,755,264
5. Step 5: Solve for x
   x = 106,456,831,755,264/4,778,880
6. Step 6: Final answer
   x = 22,276,523.32