Finding the Third Proportional to 5,772.20 and 12,611.32

Step by Step Solution

1. Step 1: Write the proportion equation
   5,772.20 : 12,611.32 = 12,611.32 : x
2. Step 2: Convert to fraction form
   5,772.20/12,611.32 = 12,611.32/x
3. Step 3: Cross multiply
   5,772.20x = 12,611.32 × 12,611.32
4. Step 4: Simplify right side
   5,772.20x = 159,045,400.02
5. Step 5: Solve for x
   x = 159,045,400.02/5,772.20
6. Step 6: Final answer
   x = 27,553.69