Finding the Third Proportional to 133,054.50 and 206,589

Step by Step Solution

1. Step 1: Write the proportion equation
   133,054.50 : 206,589 = 206,589 : x
2. Step 2: Convert to fraction form
   133,054.50/206,589 = 206,589/x
3. Step 3: Cross multiply
   133,054.50x = 206,589 × 206,589
4. Step 4: Simplify right side
   133,054.50x = 42,679,014,921
5. Step 5: Solve for x
   x = 42,679,014,921/133,054.50
6. Step 6: Final answer
   x = 320,763.41