Finding the Third Proportional to 187,155 and 401,112

Step by Step Solution

1. Step 1: Write the proportion equation
   187,155 : 401,112 = 401,112 : x
2. Step 2: Convert to fraction form
   187,155/401,112 = 401,112/x
3. Step 3: Cross multiply
   187,155x = 401,112 × 401,112
4. Step 4: Simplify right side
   187,155x = 160,890,836,544
5. Step 5: Solve for x
   x = 160,890,836,544/187,155
6. Step 6: Final answer
   x = 859,666.25