Finding the Third Proportional to 268,319 and 363,112.50

Step by Step Solution

1. Step 1: Write the proportion equation
   268,319 : 363,112.50 = 363,112.50 : x
2. Step 2: Convert to fraction form
   268,319/363,112.50 = 363,112.50/x
3. Step 3: Cross multiply
   268,319x = 363,112.50 × 363,112.50
4. Step 4: Simplify right side
   268,319x = 131,850,687,656.25
5. Step 5: Solve for x
   x = 131,850,687,656.25/268,319
6. Step 6: Final answer
   x = 491,395.27