Finding the Third Proportional to 20,805 and 31,903

Step by Step Solution

1. Step 1: Write the proportion equation
   20,805 : 31,903 = 31,903 : x
2. Step 2: Convert to fraction form
   20,805/31,903 = 31,903/x
3. Step 3: Cross multiply
   20,805x = 31,903 × 31,903
4. Step 4: Simplify right side
   20,805x = 1,017,801,409
5. Step 5: Solve for x
   x = 1,017,801,409/20,805
6. Step 6: Final answer
   x = 48,921.00