Finding the Third Proportional to 911,646 and 1,998,238

Step by Step Solution

1. Step 1: Write the proportion equation
   911,646 : 1,998,238 = 1,998,238 : x
2. Step 2: Convert to fraction form
   911,646/1,998,238 = 1,998,238/x
3. Step 3: Cross multiply
   911,646x = 1,998,238 × 1,998,238
4. Step 4: Simplify right side
   911,646x = 3,992,955,104,644
5. Step 5: Solve for x
   x = 3,992,955,104,644/911,646
6. Step 6: Final answer
   x = 4,379,940.35