Finding the Third Proportional to 820,218 and 1,801,748

Step by Step Solution

1. Step 1: Write the proportion equation
   820,218 : 1,801,748 = 1,801,748 : x
2. Step 2: Convert to fraction form
   820,218/1,801,748 = 1,801,748/x
3. Step 3: Cross multiply
   820,218x = 1,801,748 × 1,801,748
4. Step 4: Simplify right side
   820,218x = 3,246,295,855,504
5. Step 5: Solve for x
   x = 3,246,295,855,504/820,218
6. Step 6: Final answer
   x = 3,957,845.18