Finding the Third Proportional to 86,404.50 and 133,495.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,404.50 : 133,495.50 = 133,495.50 : x
2. Step 2: Convert to fraction form
   86,404.50/133,495.50 = 133,495.50/x
3. Step 3: Cross multiply
   86,404.50x = 133,495.50 × 133,495.50
4. Step 4: Simplify right side
   86,404.50x = 17,821,048,520.25
5. Step 5: Solve for x
   x = 17,821,048,520.25/86,404.50
6. Step 6: Final answer
   x = 206,251.39