Finding the Third Proportional to 12,069 and 18,647.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,069 : 18,647.72 = 18,647.72 : x
2. Step 2: Convert to fraction form
   12,069/18,647.72 = 18,647.72/x
3. Step 3: Cross multiply
   12,069x = 18,647.72 × 18,647.72
4. Step 4: Simplify right side
   12,069x = 347,737,414.58
5. Step 5: Solve for x
   x = 347,737,414.58/12,069
6. Step 6: Final answer
   x = 28,812.45