Finding the Third Proportional to 3,968,632 and 8,693,968

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968,632 : 8,693,968 = 8,693,968 : x
2. Step 2: Convert to fraction form
   3,968,632/8,693,968 = 8,693,968/x
3. Step 3: Cross multiply
   3,968,632x = 8,693,968 × 8,693,968
4. Step 4: Simplify right side
   3,968,632x = 75,585,079,585,024
5. Step 5: Solve for x
   x = 75,585,079,585,024/3,968,632
6. Step 6: Final answer
   x = 19,045,625.69