Finding the Third Proportional to 87,530 and 187,516

Step by Step Solution

1. Step 1: Write the proportion equation
   87,530 : 187,516 = 187,516 : x
2. Step 2: Convert to fraction form
   87,530/187,516 = 187,516/x
3. Step 3: Cross multiply
   87,530x = 187,516 × 187,516
4. Step 4: Simplify right side
   87,530x = 35,162,250,256
5. Step 5: Solve for x
   x = 35,162,250,256/87,530
6. Step 6: Final answer
   x = 401,716.56