Finding the Third Proportional to 12,020 and 18,650

Step by Step Solution

1. Step 1: Write the proportion equation
   12,020 : 18,650 = 18,650 : x
2. Step 2: Convert to fraction form
   12,020/18,650 = 18,650/x
3. Step 3: Cross multiply
   12,020x = 18,650 × 18,650
4. Step 4: Simplify right side
   12,020x = 347,822,500
5. Step 5: Solve for x
   x = 347,822,500/12,020
6. Step 6: Final answer
   x = 28,936.98