Finding the Third Proportional to 5,124.94 and 10,425.38

Step by Step Solution

1. Step 1: Write the proportion equation
   5,124.94 : 10,425.38 = 10,425.38 : x
2. Step 2: Convert to fraction form
   5,124.94/10,425.38 = 10,425.38/x
3. Step 3: Cross multiply
   5,124.94x = 10,425.38 × 10,425.38
4. Step 4: Simplify right side
   5,124.94x = 108,688,443.89
5. Step 5: Solve for x
   x = 108,688,443.89/5,124.94
6. Step 6: Final answer
   x = 21,207.76