Finding the Third Proportional to 19.47 and 42.37

Step by Step Solution

1. Step 1: Write the proportion equation
   19.47 : 42.37 = 42.37 : x
2. Step 2: Convert to fraction form
   19.47/42.37 = 42.37/x
3. Step 3: Cross multiply
   19.47x = 42.37 × 42.37
4. Step 4: Simplify right side
   19.47x = 1,795.11
5. Step 5: Solve for x
   x = 1,795.11/19.47
6. Step 6: Final answer
   x = 92.20