Finding the Third Proportional to 3,910,218 and 8,177,958

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910,218 : 8,177,958 = 8,177,958 : x
2. Step 2: Convert to fraction form
   3,910,218/8,177,958 = 8,177,958/x
3. Step 3: Cross multiply
   3,910,218x = 8,177,958 × 8,177,958
4. Step 4: Simplify right side
   3,910,218x = 66,878,997,049,764
5. Step 5: Solve for x
   x = 66,878,997,049,764/3,910,218
6. Step 6: Final answer
   x = 17,103,649.22