Finding the Third Proportional to 343,147 and 495,031.50

Step by Step Solution

1. Step 1: Write the proportion equation
   343,147 : 495,031.50 = 495,031.50 : x
2. Step 2: Convert to fraction form
   343,147/495,031.50 = 495,031.50/x
3. Step 3: Cross multiply
   343,147x = 495,031.50 × 495,031.50
4. Step 4: Simplify right side
   343,147x = 245,056,185,992.25
5. Step 5: Solve for x
   x = 245,056,185,992.25/343,147
6. Step 6: Final answer
   x = 714,143.46