Finding the Third Proportional to 13,655.25 and 20,442.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,655.25 : 20,442.38 = 20,442.38 : x
2. Step 2: Convert to fraction form
   13,655.25/20,442.38 = 20,442.38/x
3. Step 3: Cross multiply
   13,655.25x = 20,442.38 × 20,442.38
4. Step 4: Simplify right side
   13,655.25x = 417,890,695.64
5. Step 5: Solve for x
   x = 417,890,695.64/13,655.25
6. Step 6: Final answer
   x = 30,602.93