Finding the Third Proportional to 72,800 and 156,760

Step by Step Solution

1. Step 1: Write the proportion equation
   72,800 : 156,760 = 156,760 : x
2. Step 2: Convert to fraction form
   72,800/156,760 = 156,760/x
3. Step 3: Cross multiply
   72,800x = 156,760 × 156,760
4. Step 4: Simplify right side
   72,800x = 24,573,697,600
5. Step 5: Solve for x
   x = 24,573,697,600/72,800
6. Step 6: Final answer
   x = 337,550.79