Finding the Third Proportional to 18,578.53 and 28,222.80

Step by Step Solution

1. Step 1: Write the proportion equation
   18,578.53 : 28,222.80 = 28,222.80 : x
2. Step 2: Convert to fraction form
   18,578.53/28,222.80 = 28,222.80/x
3. Step 3: Cross multiply
   18,578.53x = 28,222.80 × 28,222.80
4. Step 4: Simplify right side
   18,578.53x = 796,526,704.43
5. Step 5: Solve for x
   x = 796,526,704.43/18,578.53
6. Step 6: Final answer
   x = 42,873.50