Finding the Third Proportional to 5,110 and 10,435

Step by Step Solution

1. Step 1: Write the proportion equation
   5,110 : 10,435 = 10,435 : x
2. Step 2: Convert to fraction form
   5,110/10,435 = 10,435/x
3. Step 3: Cross multiply
   5,110x = 10,435 × 10,435
4. Step 4: Simplify right side
   5,110x = 108,889,225
5. Step 5: Solve for x
   x = 108,889,225/5,110
6. Step 6: Final answer
   x = 21,309.05