Finding the Third Proportional to 322,887 and 443,236.50

Step by Step Solution

1. Step 1: Write the proportion equation
   322,887 : 443,236.50 = 443,236.50 : x
2. Step 2: Convert to fraction form
   322,887/443,236.50 = 443,236.50/x
3. Step 3: Cross multiply
   322,887x = 443,236.50 × 443,236.50
4. Step 4: Simplify right side
   322,887x = 196,458,594,932.25
5. Step 5: Solve for x
   x = 196,458,594,932.25/322,887
6. Step 6: Final answer
   x = 608,443.81