Finding the Third Proportional to 89,208 and 133,380

Step by Step Solution

1. Step 1: Write the proportion equation
   89,208 : 133,380 = 133,380 : x
2. Step 2: Convert to fraction form
   89,208/133,380 = 133,380/x
3. Step 3: Cross multiply
   89,208x = 133,380 × 133,380
4. Step 4: Simplify right side
   89,208x = 17,790,224,400
5. Step 5: Solve for x
   x = 17,790,224,400/89,208
6. Step 6: Final answer
   x = 199,424.09