Finding the Third Proportional to 3,913,968 and 5,987,640

Step by Step Solution

1. Step 1: Write the proportion equation
   3,913,968 : 5,987,640 = 5,987,640 : x
2. Step 2: Convert to fraction form
   3,913,968/5,987,640 = 5,987,640/x
3. Step 3: Cross multiply
   3,913,968x = 5,987,640 × 5,987,640
4. Step 4: Simplify right side
   3,913,968x = 35,851,832,769,600
5. Step 5: Solve for x
   x = 35,851,832,769,600/3,913,968
6. Step 6: Final answer
   x = 9,159,970.85