Finding the Third Proportional to 89,898.50 and 134,685.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,898.50 : 134,685.50 = 134,685.50 : x
2. Step 2: Convert to fraction form
   89,898.50/134,685.50 = 134,685.50/x
3. Step 3: Cross multiply
   89,898.50x = 134,685.50 × 134,685.50
4. Step 4: Simplify right side
   89,898.50x = 18,140,183,910.25
5. Step 5: Solve for x
   x = 18,140,183,910.25/89,898.50
6. Step 6: Final answer
   x = 201,785.17