Finding the Third Proportional to 4,687 and 10,031

Step by Step Solution

1. Step 1: Write the proportion equation
   4,687 : 10,031 = 10,031 : x
2. Step 2: Convert to fraction form
   4,687/10,031 = 10,031/x
3. Step 3: Cross multiply
   4,687x = 10,031 × 10,031
4. Step 4: Simplify right side
   4,687x = 100,620,961
5. Step 5: Solve for x
   x = 100,620,961/4,687
6. Step 6: Final answer
   x = 21,468.09