Finding the Third Proportional to 5,429.53 and 8,072.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,429.53 : 8,072.16 = 8,072.16 : x
2. Step 2: Convert to fraction form
   5,429.53/8,072.16 = 8,072.16/x
3. Step 3: Cross multiply
   5,429.53x = 8,072.16 × 8,072.16
4. Step 4: Simplify right side
   5,429.53x = 65,159,706.52
5. Step 5: Solve for x
   x = 65,159,706.52/5,429.53
6. Step 6: Final answer
   x = 12,000.98