Finding the Third Proportional to 13,993.38 and 30,420.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,993.38 : 30,420.56 = 30,420.56 : x
2. Step 2: Convert to fraction form
   13,993.38/30,420.56 = 30,420.56/x
3. Step 3: Cross multiply
   13,993.38x = 30,420.56 × 30,420.56
4. Step 4: Simplify right side
   13,993.38x = 925,410,622.82
5. Step 5: Solve for x
   x = 925,410,622.82/13,993.38
6. Step 6: Final answer
   x = 66,132.02