Finding the Third Proportional to 46.69 and 100.78

Step by Step Solution

1. Step 1: Write the proportion equation
   46.69 : 100.78 = 100.78 : x
2. Step 2: Convert to fraction form
   46.69/100.78 = 100.78/x
3. Step 3: Cross multiply
   46.69x = 100.78 × 100.78
4. Step 4: Simplify right side
   46.69x = 10,156.86
5. Step 5: Solve for x
   x = 10,156.86/46.69
6. Step 6: Final answer
   x = 217.55