Finding the Third Proportional to 131,640.75 and 188,109.56

Step by Step Solution

1. Step 1: Write the proportion equation
   131,640.75 : 188,109.56 = 188,109.56 : x
2. Step 2: Convert to fraction form
   131,640.75/188,109.56 = 188,109.56/x
3. Step 3: Cross multiply
   131,640.75x = 188,109.56 × 188,109.56
4. Step 4: Simplify right side
   131,640.75x = 35,385,207,503.94
5. Step 5: Solve for x
   x = 35,385,207,503.94/131,640.75
6. Step 6: Final answer
   x = 268,801.32