Finding the Third Proportional to 18,688.22 and 28,519.59

Step by Step Solution

1. Step 1: Write the proportion equation
   18,688.22 : 28,519.59 = 28,519.59 : x
2. Step 2: Convert to fraction form
   18,688.22/28,519.59 = 28,519.59/x
3. Step 3: Cross multiply
   18,688.22x = 28,519.59 × 28,519.59
4. Step 4: Simplify right side
   18,688.22x = 813,367,227.67
5. Step 5: Solve for x
   x = 813,367,227.67/18,688.22
6. Step 6: Final answer
   x = 43,522.99