Finding the Third Proportional to 248,319 and 327,871.50

Step by Step Solution

1. Step 1: Write the proportion equation
   248,319 : 327,871.50 = 327,871.50 : x
2. Step 2: Convert to fraction form
   248,319/327,871.50 = 327,871.50/x
3. Step 3: Cross multiply
   248,319x = 327,871.50 × 327,871.50
4. Step 4: Simplify right side
   248,319x = 107,499,720,512.25
5. Step 5: Solve for x
   x = 107,499,720,512.25/248,319
6. Step 6: Final answer
   x = 432,909.77