Finding the Third Proportional to 12,015 and 19,007.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,015 : 19,007.50 = 19,007.50 : x
2. Step 2: Convert to fraction form
   12,015/19,007.50 = 19,007.50/x
3. Step 3: Cross multiply
   12,015x = 19,007.50 × 19,007.50
4. Step 4: Simplify right side
   12,015x = 361,285,056.25
5. Step 5: Solve for x
   x = 361,285,056.25/12,015
6. Step 6: Final answer
   x = 30,069.50