Finding the Third Proportional to 46.45 and 99.31

Step by Step Solution

1. Step 1: Write the proportion equation
   46.45 : 99.31 = 99.31 : x
2. Step 2: Convert to fraction form
   46.45/99.31 = 99.31/x
3. Step 3: Cross multiply
   46.45x = 99.31 × 99.31
4. Step 4: Simplify right side
   46.45x = 9,862.88
5. Step 5: Solve for x
   x = 9,862.88/46.45
6. Step 6: Final answer
   x = 212.32