Finding the Third Proportional to 171,808.50 and 374,115

Step by Step Solution

1. Step 1: Write the proportion equation
   171,808.50 : 374,115 = 374,115 : x
2. Step 2: Convert to fraction form
   171,808.50/374,115 = 374,115/x
3. Step 3: Cross multiply
   171,808.50x = 374,115 × 374,115
4. Step 4: Simplify right side
   171,808.50x = 139,962,033,225
5. Step 5: Solve for x
   x = 139,962,033,225/171,808.50
6. Step 6: Final answer
   x = 814,639.75