Finding the Third Proportional to 239,184 and 324,978.75

Step by Step Solution

1. Step 1: Write the proportion equation
   239,184 : 324,978.75 = 324,978.75 : x
2. Step 2: Convert to fraction form
   239,184/324,978.75 = 324,978.75/x
3. Step 3: Cross multiply
   239,184x = 324,978.75 × 324,978.75
4. Step 4: Simplify right side
   239,184x = 105,611,187,951.56
5. Step 5: Solve for x
   x = 105,611,187,951.56/239,184
6. Step 6: Final answer
   x = 441,547.88