Finding the Third Proportional to 3,968,406 and 8,613,324

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968,406 : 8,613,324 = 8,613,324 : x
2. Step 2: Convert to fraction form
   3,968,406/8,613,324 = 8,613,324/x
3. Step 3: Cross multiply
   3,968,406x = 8,613,324 × 8,613,324
4. Step 4: Simplify right side
   3,968,406x = 74,189,350,328,976
5. Step 5: Solve for x
   x = 74,189,350,328,976/3,968,406
6. Step 6: Final answer
   x = 18,695,000.04