Finding the Third Proportional to 72,364 and 156,800

Step by Step Solution

1. Step 1: Write the proportion equation
   72,364 : 156,800 = 156,800 : x
2. Step 2: Convert to fraction form
   72,364/156,800 = 156,800/x
3. Step 3: Cross multiply
   72,364x = 156,800 × 156,800
4. Step 4: Simplify right side
   72,364x = 24,586,240,000
5. Step 5: Solve for x
   x = 24,586,240,000/72,364
6. Step 6: Final answer
   x = 339,757.89