Finding the Third Proportional to 3,998,185 and 5,698,216

Step by Step Solution

1. Step 1: Write the proportion equation
   3,998,185 : 5,698,216 = 5,698,216 : x
2. Step 2: Convert to fraction form
   3,998,185/5,698,216 = 5,698,216/x
3. Step 3: Cross multiply
   3,998,185x = 5,698,216 × 5,698,216
4. Step 4: Simplify right side
   3,998,185x = 32,469,665,582,656
5. Step 5: Solve for x
   x = 32,469,665,582,656/3,998,185
6. Step 6: Final answer
   x = 8,121,101.35