Finding the Third Proportional to 100.50 and 218.94

Step by Step Solution

1. Step 1: Write the proportion equation
   100.50 : 218.94 = 218.94 : x
2. Step 2: Convert to fraction form
   100.50/218.94 = 218.94/x
3. Step 3: Cross multiply
   100.50x = 218.94 × 218.94
4. Step 4: Simplify right side
   100.50x = 47,933.63
5. Step 5: Solve for x
   x = 47,933.63/100.50
6. Step 6: Final answer
   x = 476.95