Finding the Third Proportional to 1,862,721 and 4,074,147

Step by Step Solution

1. Step 1: Write the proportion equation
   1,862,721 : 4,074,147 = 4,074,147 : x
2. Step 2: Convert to fraction form
   1,862,721/4,074,147 = 4,074,147/x
3. Step 3: Cross multiply
   1,862,721x = 4,074,147 × 4,074,147
4. Step 4: Simplify right side
   1,862,721x = 16,598,673,777,609
5. Step 5: Solve for x
   x = 16,598,673,777,609/1,862,721
6. Step 6: Final answer
   x = 8,910,982.26