Finding the Third Proportional to 80,783.50 and 171,408

Step by Step Solution

1. Step 1: Write the proportion equation
   80,783.50 : 171,408 = 171,408 : x
2. Step 2: Convert to fraction form
   80,783.50/171,408 = 171,408/x
3. Step 3: Cross multiply
   80,783.50x = 171,408 × 171,408
4. Step 4: Simplify right side
   80,783.50x = 29,380,702,464
5. Step 5: Solve for x
   x = 29,380,702,464/80,783.50
6. Step 6: Final answer
   x = 363,696.83