Finding the Third Proportional to 819,998 and 1,801,428

Step by Step Solution

1. Step 1: Write the proportion equation
   819,998 : 1,801,428 = 1,801,428 : x
2. Step 2: Convert to fraction form
   819,998/1,801,428 = 1,801,428/x
3. Step 3: Cross multiply
   819,998x = 1,801,428 × 1,801,428
4. Step 4: Simplify right side
   819,998x = 3,245,142,839,184
5. Step 5: Solve for x
   x = 3,245,142,839,184/819,998
6. Step 6: Final answer
   x = 3,957,500.92