Finding the Third Proportional to 12,919.50 and 19,487.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,919.50 : 19,487.25 = 19,487.25 : x
2. Step 2: Convert to fraction form
   12,919.50/19,487.25 = 19,487.25/x
3. Step 3: Cross multiply
   12,919.50x = 19,487.25 × 19,487.25
4. Step 4: Simplify right side
   12,919.50x = 379,752,912.56
5. Step 5: Solve for x
   x = 379,752,912.56/12,919.50
6. Step 6: Final answer
   x = 29,393.78