Finding the Third Proportional to 5,072 and 10,000

Step by Step Solution

1. Step 1: Write the proportion equation
   5,072 : 10,000 = 10,000 : x
2. Step 2: Convert to fraction form
   5,072/10,000 = 10,000/x
3. Step 3: Cross multiply
   5,072x = 10,000 × 10,000
4. Step 4: Simplify right side
   5,072x = 100,000,000
5. Step 5: Solve for x
   x = 100,000,000/5,072
6. Step 6: Final answer
   x = 19,716.09