Finding the Third Proportional to 267,939 and 363,868.50

Step by Step Solution

1. Step 1: Write the proportion equation
   267,939 : 363,868.50 = 363,868.50 : x
2. Step 2: Convert to fraction form
   267,939/363,868.50 = 363,868.50/x
3. Step 3: Cross multiply
   267,939x = 363,868.50 × 363,868.50
4. Step 4: Simplify right side
   267,939x = 132,400,285,292.25
5. Step 5: Solve for x
   x = 132,400,285,292.25/267,939
6. Step 6: Final answer
   x = 494,143.39