Finding the Third Proportional to 383,823 and 811,933.50

Step by Step Solution

1. Step 1: Write the proportion equation
   383,823 : 811,933.50 = 811,933.50 : x
2. Step 2: Convert to fraction form
   383,823/811,933.50 = 811,933.50/x
3. Step 3: Cross multiply
   383,823x = 811,933.50 × 811,933.50
4. Step 4: Simplify right side
   383,823x = 659,236,008,422.25
5. Step 5: Solve for x
   x = 659,236,008,422.25/383,823
6. Step 6: Final answer
   x = 1,717,552.12