Finding the Third Proportional to 3,968,395 and 8,613,302

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968,395 : 8,613,302 = 8,613,302 : x
2. Step 2: Convert to fraction form
   3,968,395/8,613,302 = 8,613,302/x
3. Step 3: Cross multiply
   3,968,395x = 8,613,302 × 8,613,302
4. Step 4: Simplify right side
   3,968,395x = 74,188,971,343,204
5. Step 5: Solve for x
   x = 74,188,971,343,204/3,968,395
6. Step 6: Final answer
   x = 18,694,956.36