Finding the Third Proportional to 87,270 and 188,464.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,270 : 188,464.50 = 188,464.50 : x
2. Step 2: Convert to fraction form
   87,270/188,464.50 = 188,464.50/x
3. Step 3: Cross multiply
   87,270x = 188,464.50 × 188,464.50
4. Step 4: Simplify right side
   87,270x = 35,518,867,760.25
5. Step 5: Solve for x
   x = 35,518,867,760.25/87,270
6. Step 6: Final answer
   x = 406,999.75