Finding the Third Proportional to 3,945,195 and 8,499,836

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945,195 : 8,499,836 = 8,499,836 : x
2. Step 2: Convert to fraction form
   3,945,195/8,499,836 = 8,499,836/x
3. Step 3: Cross multiply
   3,945,195x = 8,499,836 × 8,499,836
4. Step 4: Simplify right side
   3,945,195x = 72,247,212,026,896
5. Step 5: Solve for x
   x = 72,247,212,026,896/3,945,195
6. Step 6: Final answer
   x = 18,312,710.02