Finding the Third Proportional to 2,021,920 and 4,328,147

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,920 : 4,328,147 = 4,328,147 : x
2. Step 2: Convert to fraction form
   2,021,920/4,328,147 = 4,328,147/x
3. Step 3: Cross multiply
   2,021,920x = 4,328,147 × 4,328,147
4. Step 4: Simplify right side
   2,021,920x = 18,732,856,453,609
5. Step 5: Solve for x
   x = 18,732,856,453,609/2,021,920
6. Step 6: Final answer
   x = 9,264,885.09