Finding the Third Proportional to 3,910,298 and 8,178,116

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910,298 : 8,178,116 = 8,178,116 : x
2. Step 2: Convert to fraction form
   3,910,298/8,178,116 = 8,178,116/x
3. Step 3: Cross multiply
   3,910,298x = 8,178,116 × 8,178,116
4. Step 4: Simplify right side
   3,910,298x = 66,881,581,309,456
5. Step 5: Solve for x
   x = 66,881,581,309,456/3,910,298
6. Step 6: Final answer
   x = 17,103,960.19