Finding the Third Proportional to 33,427.69 and 68,040

Step by Step Solution

1. Step 1: Write the proportion equation
   33,427.69 : 68,040 = 68,040 : x
2. Step 2: Convert to fraction form
   33,427.69/68,040 = 68,040/x
3. Step 3: Cross multiply
   33,427.69x = 68,040 × 68,040
4. Step 4: Simplify right side
   33,427.69x = 4,629,441,600
5. Step 5: Solve for x
   x = 4,629,441,600/33,427.69
6. Step 6: Final answer
   x = 138,491.23