Finding the Third Proportional to 90.84 and 225.98

Step by Step Solution

1. Step 1: Write the proportion equation
   90.84 : 225.98 = 225.98 : x
2. Step 2: Convert to fraction form
   90.84/225.98 = 225.98/x
3. Step 3: Cross multiply
   90.84x = 225.98 × 225.98
4. Step 4: Simplify right side
   90.84x = 51,068.94
5. Step 5: Solve for x
   x = 51,068.94/90.84
6. Step 6: Final answer
   x = 562.16