Finding the Third Proportional to 2,021,959 and 4,328,228

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,959 : 4,328,228 = 4,328,228 : x
2. Step 2: Convert to fraction form
   2,021,959/4,328,228 = 4,328,228/x
3. Step 3: Cross multiply
   2,021,959x = 4,328,228 × 4,328,228
4. Step 4: Simplify right side
   2,021,959x = 18,733,557,619,984
5. Step 5: Solve for x
   x = 18,733,557,619,984/2,021,959
6. Step 6: Final answer
   x = 9,265,053.16