Finding the Third Proportional to 133,600 and 207,150

Step by Step Solution

1. Step 1: Write the proportion equation
   133,600 : 207,150 = 207,150 : x
2. Step 2: Convert to fraction form
   133,600/207,150 = 207,150/x
3. Step 3: Cross multiply
   133,600x = 207,150 × 207,150
4. Step 4: Simplify right side
   133,600x = 42,911,122,500
5. Step 5: Solve for x
   x = 42,911,122,500/133,600
6. Step 6: Final answer
   x = 321,191.04