Finding the Third Proportional to 821,418 and 1,797,685.50

Step by Step Solution

1. Step 1: Write the proportion equation
   821,418 : 1,797,685.50 = 1,797,685.50 : x
2. Step 2: Convert to fraction form
   821,418/1,797,685.50 = 1,797,685.50/x
3. Step 3: Cross multiply
   821,418x = 1,797,685.50 × 1,797,685.50
4. Step 4: Simplify right side
   821,418x = 3,231,673,156,910.25
5. Step 5: Solve for x
   x = 3,231,673,156,910.25/821,418
6. Step 6: Final answer
   x = 3,934,261.43