Finding the Third Proportional to 171,681.50 and 372,917

Step by Step Solution

1. Step 1: Write the proportion equation
   171,681.50 : 372,917 = 372,917 : x
2. Step 2: Convert to fraction form
   171,681.50/372,917 = 372,917/x
3. Step 3: Cross multiply
   171,681.50x = 372,917 × 372,917
4. Step 4: Simplify right side
   171,681.50x = 139,067,088,889
5. Step 5: Solve for x
   x = 139,067,088,889/171,681.50
6. Step 6: Final answer
   x = 810,029.55