Finding the Third Proportional to 3,968,656 and 8,694,009

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968,656 : 8,694,009 = 8,694,009 : x
2. Step 2: Convert to fraction form
   3,968,656/8,694,009 = 8,694,009/x
3. Step 3: Cross multiply
   3,968,656x = 8,694,009 × 8,694,009
4. Step 4: Simplify right side
   3,968,656x = 75,585,792,492,081
5. Step 5: Solve for x
   x = 75,585,792,492,081/3,968,656
6. Step 6: Final answer
   x = 19,045,690.15