Finding the Third Proportional to 91.31 and 194.63

Step by Step Solution

1. Step 1: Write the proportion equation
   91.31 : 194.63 = 194.63 : x
2. Step 2: Convert to fraction form
   91.31/194.63 = 194.63/x
3. Step 3: Cross multiply
   91.31x = 194.63 × 194.63
4. Step 4: Simplify right side
   91.31x = 37,878.89
5. Step 5: Solve for x
   x = 37,878.89/91.31
6. Step 6: Final answer
   x = 414.83