Finding the Third Proportional to 20,234 and 42,979

Step by Step Solution

1. Step 1: Write the proportion equation
   20,234 : 42,979 = 42,979 : x
2. Step 2: Convert to fraction form
   20,234/42,979 = 42,979/x
3. Step 3: Cross multiply
   20,234x = 42,979 × 42,979
4. Step 4: Simplify right side
   20,234x = 1,847,194,441
5. Step 5: Solve for x
   x = 1,847,194,441/20,234
6. Step 6: Final answer
   x = 91,291.61