Finding the Third Proportional to 133,020 and 195,640.31

Step by Step Solution

1. Step 1: Write the proportion equation
   133,020 : 195,640.31 = 195,640.31 : x
2. Step 2: Convert to fraction form
   133,020/195,640.31 = 195,640.31/x
3. Step 3: Cross multiply
   133,020x = 195,640.31 × 195,640.31
4. Step 4: Simplify right side
   133,020x = 38,275,131,875.10
5. Step 5: Solve for x
   x = 38,275,131,875.10/133,020
6. Step 6: Final answer
   x = 287,739.68