Finding the Third Proportional to 18,574.31 and 28,772.72

Step by Step Solution

1. Step 1: Write the proportion equation
   18,574.31 : 28,772.72 = 28,772.72 : x
2. Step 2: Convert to fraction form
   18,574.31/28,772.72 = 28,772.72/x
3. Step 3: Cross multiply
   18,574.31x = 28,772.72 × 28,772.72
4. Step 4: Simplify right side
   18,574.31x = 827,869,344.27
5. Step 5: Solve for x
   x = 827,869,344.27/18,574.31
6. Step 6: Final answer
   x = 44,570.66