Finding the Third Proportional to 72,697 and 156,530

Step by Step Solution

1. Step 1: Write the proportion equation
   72,697 : 156,530 = 156,530 : x
2. Step 2: Convert to fraction form
   72,697/156,530 = 156,530/x
3. Step 3: Cross multiply
   72,697x = 156,530 × 156,530
4. Step 4: Simplify right side
   72,697x = 24,501,640,900
5. Step 5: Solve for x
   x = 24,501,640,900/72,697
6. Step 6: Final answer
   x = 337,037.85