Finding the Third Proportional to 133,905 and 207,340.50

Step by Step Solution

1. Step 1: Write the proportion equation
   133,905 : 207,340.50 = 207,340.50 : x
2. Step 2: Convert to fraction form
   133,905/207,340.50 = 207,340.50/x
3. Step 3: Cross multiply
   133,905x = 207,340.50 × 207,340.50
4. Step 4: Simplify right side
   133,905x = 42,990,082,940.25
5. Step 5: Solve for x
   x = 42,990,082,940.25/133,905
6. Step 6: Final answer
   x = 321,049.12