Finding the Third Proportional to 33,620 and 72,372

Step by Step Solution

1. Step 1: Write the proportion equation
   33,620 : 72,372 = 72,372 : x
2. Step 2: Convert to fraction form
   33,620/72,372 = 72,372/x
3. Step 3: Cross multiply
   33,620x = 72,372 × 72,372
4. Step 4: Simplify right side
   33,620x = 5,237,706,384
5. Step 5: Solve for x
   x = 5,237,706,384/33,620
6. Step 6: Final answer
   x = 155,791.39