Finding the Third Proportional to 2,021,814 and 4,397,900

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,814 : 4,397,900 = 4,397,900 : x
2. Step 2: Convert to fraction form
   2,021,814/4,397,900 = 4,397,900/x
3. Step 3: Cross multiply
   2,021,814x = 4,397,900 × 4,397,900
4. Step 4: Simplify right side
   2,021,814x = 19,341,524,410,000
5. Step 5: Solve for x
   x = 19,341,524,410,000/2,021,814
6. Step 6: Final answer
   x = 9,566,421.25