Finding the Third Proportional to 42.52 and 90.70

Step by Step Solution

1. Step 1: Write the proportion equation
   42.52 : 90.70 = 90.70 : x
2. Step 2: Convert to fraction form
   42.52/90.70 = 90.70/x
3. Step 3: Cross multiply
   42.52x = 90.70 × 90.70
4. Step 4: Simplify right side
   42.52x = 8,227.06
5. Step 5: Solve for x
   x = 8,227.06/42.52
6. Step 6: Final answer
   x = 193.51