Finding the Third Proportional to 89,133.50 and 133,719.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,133.50 : 133,719.50 = 133,719.50 : x
2. Step 2: Convert to fraction form
   89,133.50/133,719.50 = 133,719.50/x
3. Step 3: Cross multiply
   89,133.50x = 133,719.50 × 133,719.50
4. Step 4: Simplify right side
   89,133.50x = 17,880,904,680.25
5. Step 5: Solve for x
   x = 17,880,904,680.25/89,133.50
6. Step 6: Final answer
   x = 200,608.13