Finding the Third Proportional to 20,471 and 43,116

Step by Step Solution

1. Step 1: Write the proportion equation
   20,471 : 43,116 = 43,116 : x
2. Step 2: Convert to fraction form
   20,471/43,116 = 43,116/x
3. Step 3: Cross multiply
   20,471x = 43,116 × 43,116
4. Step 4: Simplify right side
   20,471x = 1,858,989,456
5. Step 5: Solve for x
   x = 1,858,989,456/20,471
6. Step 6: Final answer
   x = 90,810.88