Finding the Third Proportional to 11,812 and 18,031.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,812 : 18,031.50 = 18,031.50 : x
2. Step 2: Convert to fraction form
   11,812/18,031.50 = 18,031.50/x
3. Step 3: Cross multiply
   11,812x = 18,031.50 × 18,031.50
4. Step 4: Simplify right side
   11,812x = 325,134,992.25
5. Step 5: Solve for x
   x = 325,134,992.25/11,812
6. Step 6: Final answer
   x = 27,525.82