Finding the Third Proportional to 12,005.72 and 25,902.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,005.72 : 25,902.28 = 25,902.28 : x
2. Step 2: Convert to fraction form
   12,005.72/25,902.28 = 25,902.28/x
3. Step 3: Cross multiply
   12,005.72x = 25,902.28 × 25,902.28
4. Step 4: Simplify right side
   12,005.72x = 670,928,173.95
5. Step 5: Solve for x
   x = 670,928,173.95/12,005.72
6. Step 6: Final answer
   x = 55,884.05