Finding the Third Proportional to 20,848 and 42,469

Step by Step Solution

1. Step 1: Write the proportion equation
   20,848 : 42,469 = 42,469 : x
2. Step 2: Convert to fraction form
   20,848/42,469 = 42,469/x
3. Step 3: Cross multiply
   20,848x = 42,469 × 42,469
4. Step 4: Simplify right side
   20,848x = 1,803,615,961
5. Step 5: Solve for x
   x = 1,803,615,961/20,848
6. Step 6: Final answer
   x = 86,512.66