Finding the Third Proportional to 96.98 and 145.15

Step by Step Solution

1. Step 1: Write the proportion equation
   96.98 : 145.15 = 145.15 : x
2. Step 2: Convert to fraction form
   96.98/145.15 = 145.15/x
3. Step 3: Cross multiply
   96.98x = 145.15 × 145.15
4. Step 4: Simplify right side
   96.98x = 21,068.92
5. Step 5: Solve for x
   x = 21,068.92/96.98
6. Step 6: Final answer
   x = 217.25