Finding the Third Proportional to 4,870.27 and 10,509.47

Step by Step Solution

1. Step 1: Write the proportion equation
   4,870.27 : 10,509.47 = 10,509.47 : x
2. Step 2: Convert to fraction form
   4,870.27/10,509.47 = 10,509.47/x
3. Step 3: Cross multiply
   4,870.27x = 10,509.47 × 10,509.47
4. Step 4: Simplify right side
   4,870.27x = 110,448,933.41
5. Step 5: Solve for x
   x = 110,448,933.41/4,870.27
6. Step 6: Final answer
   x = 22,678.22