Finding the Third Proportional to 12,352.50 and 18,688.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,352.50 : 18,688.22 = 18,688.22 : x
2. Step 2: Convert to fraction form
   12,352.50/18,688.22 = 18,688.22/x
3. Step 3: Cross multiply
   12,352.50x = 18,688.22 × 18,688.22
4. Step 4: Simplify right side
   12,352.50x = 349,249,520.05
5. Step 5: Solve for x
   x = 349,249,520.05/12,352.50
6. Step 6: Final answer
   x = 28,273.59