Finding the Third Proportional to 171,120 and 381,544.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,120 : 381,544.50 = 381,544.50 : x
2. Step 2: Convert to fraction form
   171,120/381,544.50 = 381,544.50/x
3. Step 3: Cross multiply
   171,120x = 381,544.50 × 381,544.50
4. Step 4: Simplify right side
   171,120x = 145,576,205,480.25
5. Step 5: Solve for x
   x = 145,576,205,480.25/171,120
6. Step 6: Final answer
   x = 850,725.84