Finding the Third Proportional to 323,354 and 667,465.50

Step by Step Solution

1. Step 1: Write the proportion equation
   323,354 : 667,465.50 = 667,465.50 : x
2. Step 2: Convert to fraction form
   323,354/667,465.50 = 667,465.50/x
3. Step 3: Cross multiply
   323,354x = 667,465.50 × 667,465.50
4. Step 4: Simplify right side
   323,354x = 445,510,193,690.25
5. Step 5: Solve for x
   x = 445,510,193,690.25/323,354
6. Step 6: Final answer
   x = 1,377,778.51