Finding the Third Proportional to 230,271 and 355,249.50

Step by Step Solution

1. Step 1: Write the proportion equation
   230,271 : 355,249.50 = 355,249.50 : x
2. Step 2: Convert to fraction form
   230,271/355,249.50 = 355,249.50/x
3. Step 3: Cross multiply
   230,271x = 355,249.50 × 355,249.50
4. Step 4: Simplify right side
   230,271x = 126,202,207,250.25
5. Step 5: Solve for x
   x = 126,202,207,250.25/230,271
6. Step 6: Final answer
   x = 548,059.49