Finding the Third Proportional to 427.90 and 922.52

Step by Step Solution

1. Step 1: Write the proportion equation
   427.90 : 922.52 = 922.52 : x
2. Step 2: Convert to fraction form
   427.90/922.52 = 922.52/x
3. Step 3: Cross multiply
   427.90x = 922.52 × 922.52
4. Step 4: Simplify right side
   427.90x = 851,046.79
5. Step 5: Solve for x
   x = 851,046.79/427.90
6. Step 6: Final answer
   x = 1,988.89