Finding the Third Proportional to 30,361.13 and 42,456.38

Step by Step Solution

1. Step 1: Write the proportion equation
   30,361.13 : 42,456.38 = 42,456.38 : x
2. Step 2: Convert to fraction form
   30,361.13/42,456.38 = 42,456.38/x
3. Step 3: Cross multiply
   30,361.13x = 42,456.38 × 42,456.38
4. Step 4: Simplify right side
   30,361.13x = 1,802,543,778.14
5. Step 5: Solve for x
   x = 1,802,543,778.14/30,361.13
6. Step 6: Final answer
   x = 59,370.12