Finding the Third Proportional to 4,687.88 and 10,031.63

Step by Step Solution

1. Step 1: Write the proportion equation
   4,687.88 : 10,031.63 = 10,031.63 : x
2. Step 2: Convert to fraction form
   4,687.88/10,031.63 = 10,031.63/x
3. Step 3: Cross multiply
   4,687.88x = 10,031.63 × 10,031.63
4. Step 4: Simplify right side
   4,687.88x = 100,633,500.14
5. Step 5: Solve for x
   x = 100,633,500.14/4,687.88
6. Step 6: Final answer
   x = 21,466.76