Finding the Third Proportional to 134,680.78 and 200,853.42

Step by Step Solution

1. Step 1: Write the proportion equation
   134,680.78 : 200,853.42 = 200,853.42 : x
2. Step 2: Convert to fraction form
   134,680.78/200,853.42 = 200,853.42/x
3. Step 3: Cross multiply
   134,680.78x = 200,853.42 × 200,853.42
4. Step 4: Simplify right side
   134,680.78x = 40,342,097,078.90
5. Step 5: Solve for x
   x = 40,342,097,078.90/134,680.78
6. Step 6: Final answer
   x = 299,538.63