Finding the Third Proportional to 156,540 and 223,050

Step by Step Solution

1. Step 1: Write the proportion equation
   156,540 : 223,050 = 223,050 : x
2. Step 2: Convert to fraction form
   156,540/223,050 = 223,050/x
3. Step 3: Cross multiply
   156,540x = 223,050 × 223,050
4. Step 4: Simplify right side
   156,540x = 49,751,302,500
5. Step 5: Solve for x
   x = 49,751,302,500/156,540
6. Step 6: Final answer
   x = 317,818.46