Finding the Third Proportional to 90.83 and 118.18

Step by Step Solution

1. Step 1: Write the proportion equation
   90.83 : 118.18 = 118.18 : x
2. Step 2: Convert to fraction form
   90.83/118.18 = 118.18/x
3. Step 3: Cross multiply
   90.83x = 118.18 × 118.18
4. Step 4: Simplify right side
   90.83x = 13,965.98
5. Step 5: Solve for x
   x = 13,965.98/90.83
6. Step 6: Final answer
   x = 153.77