Finding the Third Proportional to 156.50 and 360.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156.50 : 360.50 = 360.50 : x
2. Step 2: Convert to fraction form
   156.50/360.50 = 360.50/x
3. Step 3: Cross multiply
   156.50x = 360.50 × 360.50
4. Step 4: Simplify right side
   156.50x = 129,960.25
5. Step 5: Solve for x
   x = 129,960.25/156.50
6. Step 6: Final answer
   x = 830.42