Finding the Third Proportional to 33,291 and 71,478

Step by Step Solution

1. Step 1: Write the proportion equation
   33,291 : 71,478 = 71,478 : x
2. Step 2: Convert to fraction form
   33,291/71,478 = 71,478/x
3. Step 3: Cross multiply
   33,291x = 71,478 × 71,478
4. Step 4: Simplify right side
   33,291x = 5,109,104,484
5. Step 5: Solve for x
   x = 5,109,104,484/33,291
6. Step 6: Final answer
   x = 153,468.04