Finding the Third Proportional to 90,617.50 and 204,735.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,617.50 : 204,735.50 = 204,735.50 : x
2. Step 2: Convert to fraction form
   90,617.50/204,735.50 = 204,735.50/x
3. Step 3: Cross multiply
   90,617.50x = 204,735.50 × 204,735.50
4. Step 4: Simplify right side
   90,617.50x = 41,916,624,960.25
5. Step 5: Solve for x
   x = 41,916,624,960.25/90,617.50
6. Step 6: Final answer
   x = 462,566.56