Finding the Third Proportional to 12,072 and 20,575.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,072 : 20,575.50 = 20,575.50 : x
2. Step 2: Convert to fraction form
   12,072/20,575.50 = 20,575.50/x
3. Step 3: Cross multiply
   12,072x = 20,575.50 × 20,575.50
4. Step 4: Simplify right side
   12,072x = 423,351,200.25
5. Step 5: Solve for x
   x = 423,351,200.25/12,072
6. Step 6: Final answer
   x = 35,068.85