Finding the Third Proportional to 194.78 and 250.72

Step by Step Solution

1. Step 1: Write the proportion equation
   194.78 : 250.72 = 250.72 : x
2. Step 2: Convert to fraction form
   194.78/250.72 = 250.72/x
3. Step 3: Cross multiply
   194.78x = 250.72 × 250.72
4. Step 4: Simplify right side
   194.78x = 62,859.89
5. Step 5: Solve for x
   x = 62,859.89/194.78
6. Step 6: Final answer
   x = 322.72