Finding the Third Proportional to 9,687 and 20,262

Step by Step Solution

1. Step 1: Write the proportion equation
   9,687 : 20,262 = 20,262 : x
2. Step 2: Convert to fraction form
   9,687/20,262 = 20,262/x
3. Step 3: Cross multiply
   9,687x = 20,262 × 20,262
4. Step 4: Simplify right side
   9,687x = 410,548,644
5. Step 5: Solve for x
   x = 410,548,644/9,687
6. Step 6: Final answer
   x = 42,381.40