Finding the Third Proportional to 87,454.50 and 188,286

Step by Step Solution

1. Step 1: Write the proportion equation
   87,454.50 : 188,286 = 188,286 : x
2. Step 2: Convert to fraction form
   87,454.50/188,286 = 188,286/x
3. Step 3: Cross multiply
   87,454.50x = 188,286 × 188,286
4. Step 4: Simplify right side
   87,454.50x = 35,451,617,796
5. Step 5: Solve for x
   x = 35,451,617,796/87,454.50
6. Step 6: Final answer
   x = 405,372.14