Finding the Third Proportional to 20,845 and 42,461

Step by Step Solution

1. Step 1: Write the proportion equation
   20,845 : 42,461 = 42,461 : x
2. Step 2: Convert to fraction form
   20,845/42,461 = 42,461/x
3. Step 3: Cross multiply
   20,845x = 42,461 × 42,461
4. Step 4: Simplify right side
   20,845x = 1,802,936,521
5. Step 5: Solve for x
   x = 1,802,936,521/20,845
6. Step 6: Final answer
   x = 86,492.52