Finding the Third Proportional to 33,138 and 71,558

Step by Step Solution

1. Step 1: Write the proportion equation
   33,138 : 71,558 = 71,558 : x
2. Step 2: Convert to fraction form
   33,138/71,558 = 71,558/x
3. Step 3: Cross multiply
   33,138x = 71,558 × 71,558
4. Step 4: Simplify right side
   33,138x = 5,120,547,364
5. Step 5: Solve for x
   x = 5,120,547,364/33,138
6. Step 6: Final answer
   x = 154,521.92