Finding the Third Proportional to 100.69 and 210.94

Step by Step Solution

1. Step 1: Write the proportion equation
   100.69 : 210.94 = 210.94 : x
2. Step 2: Convert to fraction form
   100.69/210.94 = 210.94/x
3. Step 3: Cross multiply
   100.69x = 210.94 × 210.94
4. Step 4: Simplify right side
   100.69x = 44,494.63
5. Step 5: Solve for x
   x = 44,494.63/100.69
6. Step 6: Final answer
   x = 441.91