Finding the Third Proportional to 133,089.75 and 206,470.69

Step by Step Solution

1. Step 1: Write the proportion equation
   133,089.75 : 206,470.69 = 206,470.69 : x
2. Step 2: Convert to fraction form
   133,089.75/206,470.69 = 206,470.69/x
3. Step 3: Cross multiply
   133,089.75x = 206,470.69 × 206,470.69
4. Step 4: Simplify right side
   133,089.75x = 42,630,144,796.72
5. Step 5: Solve for x
   x = 42,630,144,796.72/133,089.75
6. Step 6: Final answer
   x = 320,311.25