Finding the Third Proportional to 4,710.25 and 10,149.25

Step by Step Solution

1. Step 1: Write the proportion equation
   4,710.25 : 10,149.25 = 10,149.25 : x
2. Step 2: Convert to fraction form
   4,710.25/10,149.25 = 10,149.25/x
3. Step 3: Cross multiply
   4,710.25x = 10,149.25 × 10,149.25
4. Step 4: Simplify right side
   4,710.25x = 103,007,275.56
5. Step 5: Solve for x
   x = 103,007,275.56/4,710.25
6. Step 6: Final answer
   x = 21,868.75