Finding the Third Proportional to 171,684 and 372,919.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,684 : 372,919.50 = 372,919.50 : x
2. Step 2: Convert to fraction form
   171,684/372,919.50 = 372,919.50/x
3. Step 3: Cross multiply
   171,684x = 372,919.50 × 372,919.50
4. Step 4: Simplify right side
   171,684x = 139,068,953,480.25
5. Step 5: Solve for x
   x = 139,068,953,480.25/171,684
6. Step 6: Final answer
   x = 810,028.62