Finding the Third Proportional to 131,509 and 188,043

Step by Step Solution

1. Step 1: Write the proportion equation
   131,509 : 188,043 = 188,043 : x
2. Step 2: Convert to fraction form
   131,509/188,043 = 188,043/x
3. Step 3: Cross multiply
   131,509x = 188,043 × 188,043
4. Step 4: Simplify right side
   131,509x = 35,360,169,849
5. Step 5: Solve for x
   x = 35,360,169,849/131,509
6. Step 6: Final answer
   x = 268,880.23