Finding the Third Proportional to 94.78 and 210.56

Step by Step Solution

1. Step 1: Write the proportion equation
   94.78 : 210.56 = 210.56 : x
2. Step 2: Convert to fraction form
   94.78/210.56 = 210.56/x
3. Step 3: Cross multiply
   94.78x = 210.56 × 210.56
4. Step 4: Simplify right side
   94.78x = 44,336.57
5. Step 5: Solve for x
   x = 44,336.57/94.78
6. Step 6: Final answer
   x = 467.78