Finding the Third Proportional to 2,157,840 and 3,221,983

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157,840 : 3,221,983 = 3,221,983 : x
2. Step 2: Convert to fraction form
   2,157,840/3,221,983 = 3,221,983/x
3. Step 3: Cross multiply
   2,157,840x = 3,221,983 × 3,221,983
4. Step 4: Simplify right side
   2,157,840x = 10,381,174,452,289
5. Step 5: Solve for x
   x = 10,381,174,452,289/2,157,840
6. Step 6: Final answer
   x = 4,810,910.19