Finding the Third Proportional to 3,836,512 and 8,403,968

Step by Step Solution

1. Step 1: Write the proportion equation
   3,836,512 : 8,403,968 = 8,403,968 : x
2. Step 2: Convert to fraction form
   3,836,512/8,403,968 = 8,403,968/x
3. Step 3: Cross multiply
   3,836,512x = 8,403,968 × 8,403,968
4. Step 4: Simplify right side
   3,836,512x = 70,626,678,145,024
5. Step 5: Solve for x
   x = 70,626,678,145,024/3,836,512
6. Step 6: Final answer
   x = 18,409,085.69