Finding the Third Proportional to 131,631 and 188,101.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,631 : 188,101.50 = 188,101.50 : x
2. Step 2: Convert to fraction form
   131,631/188,101.50 = 188,101.50/x
3. Step 3: Cross multiply
   131,631x = 188,101.50 × 188,101.50
4. Step 4: Simplify right side
   131,631x = 35,382,174,302.25
5. Step 5: Solve for x
   x = 35,382,174,302.25/131,631
6. Step 6: Final answer
   x = 268,798.19