Finding the Third Proportional to 391,832 and 800,268.50

Step by Step Solution

1. Step 1: Write the proportion equation
   391,832 : 800,268.50 = 800,268.50 : x
2. Step 2: Convert to fraction form
   391,832/800,268.50 = 800,268.50/x
3. Step 3: Cross multiply
   391,832x = 800,268.50 × 800,268.50
4. Step 4: Simplify right side
   391,832x = 640,429,672,092.25
5. Step 5: Solve for x
   x = 640,429,672,092.25/391,832
6. Step 6: Final answer
   x = 1,634,449.64