Finding the Third Proportional to 12,015 and 30,793.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,015 : 30,793.50 = 30,793.50 : x
2. Step 2: Convert to fraction form
   12,015/30,793.50 = 30,793.50/x
3. Step 3: Cross multiply
   12,015x = 30,793.50 × 30,793.50
4. Step 4: Simplify right side
   12,015x = 948,239,642.25
5. Step 5: Solve for x
   x = 948,239,642.25/12,015
6. Step 6: Final answer
   x = 78,921.32