Finding the Third Proportional to 87,357 and 187,179

Step by Step Solution

1. Step 1: Write the proportion equation
   87,357 : 187,179 = 187,179 : x
2. Step 2: Convert to fraction form
   87,357/187,179 = 187,179/x
3. Step 3: Cross multiply
   87,357x = 187,179 × 187,179
4. Step 4: Simplify right side
   87,357x = 35,035,978,041
5. Step 5: Solve for x
   x = 35,035,978,041/87,357
6. Step 6: Final answer
   x = 401,066.64