Finding the Third Proportional to 116.53 and 245.72

Step by Step Solution

1. Step 1: Write the proportion equation
   116.53 : 245.72 = 245.72 : x
2. Step 2: Convert to fraction form
   116.53/245.72 = 245.72/x
3. Step 3: Cross multiply
   116.53x = 245.72 × 245.72
4. Step 4: Simplify right side
   116.53x = 60,377.70
5. Step 5: Solve for x
   x = 60,377.70/116.53
6. Step 6: Final answer
   x = 518.12