Finding the Third Proportional to 12,271.50 and 28,819.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,271.50 : 28,819.13 = 28,819.13 : x
2. Step 2: Convert to fraction form
   12,271.50/28,819.13 = 28,819.13/x
3. Step 3: Cross multiply
   12,271.50x = 28,819.13 × 28,819.13
4. Step 4: Simplify right side
   12,271.50x = 830,541,965.77
5. Step 5: Solve for x
   x = 830,541,965.77/12,271.50
6. Step 6: Final answer
   x = 67,680.56