Finding the Third Proportional to 33,387 and 72,609

Step by Step Solution

1. Step 1: Write the proportion equation
   33,387 : 72,609 = 72,609 : x
2. Step 2: Convert to fraction form
   33,387/72,609 = 72,609/x
3. Step 3: Cross multiply
   33,387x = 72,609 × 72,609
4. Step 4: Simplify right side
   33,387x = 5,272,066,881
5. Step 5: Solve for x
   x = 5,272,066,881/33,387
6. Step 6: Final answer
   x = 157,907.77