Finding the Third Proportional to 4,521,800 and 9,828,968

Step by Step Solution

1. Step 1: Write the proportion equation
   4,521,800 : 9,828,968 = 9,828,968 : x
2. Step 2: Convert to fraction form
   4,521,800/9,828,968 = 9,828,968/x
3. Step 3: Cross multiply
   4,521,800x = 9,828,968 × 9,828,968
4. Step 4: Simplify right side
   4,521,800x = 96,608,611,945,024
5. Step 5: Solve for x
   x = 96,608,611,945,024/4,521,800
6. Step 6: Final answer
   x = 21,365,078.50