Finding the Third Proportional to 2,021,810 and 4,397,892

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,810 : 4,397,892 = 4,397,892 : x
2. Step 2: Convert to fraction form
   2,021,810/4,397,892 = 4,397,892/x
3. Step 3: Cross multiply
   2,021,810x = 4,397,892 × 4,397,892
4. Step 4: Simplify right side
   2,021,810x = 19,341,454,043,664
5. Step 5: Solve for x
   x = 19,341,454,043,664/2,021,810
6. Step 6: Final answer
   x = 9,566,405.37