Finding the Third Proportional to 90.35 and 192.06

Step by Step Solution

1. Step 1: Write the proportion equation
   90.35 : 192.06 = 192.06 : x
2. Step 2: Convert to fraction form
   90.35/192.06 = 192.06/x
3. Step 3: Cross multiply
   90.35x = 192.06 × 192.06
4. Step 4: Simplify right side
   90.35x = 36,886.50
5. Step 5: Solve for x
   x = 36,886.50/90.35
6. Step 6: Final answer
   x = 408.26