Finding the Third Proportional to 12,109.50 and 18,744.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,109.50 : 18,744.75 = 18,744.75 : x
2. Step 2: Convert to fraction form
   12,109.50/18,744.75 = 18,744.75/x
3. Step 3: Cross multiply
   12,109.50x = 18,744.75 × 18,744.75
4. Step 4: Simplify right side
   12,109.50x = 351,365,652.56
5. Step 5: Solve for x
   x = 351,365,652.56/12,109.50
6. Step 6: Final answer
   x = 29,015.70