Finding the Third Proportional to 171,709.50 and 377,676

Step by Step Solution

1. Step 1: Write the proportion equation
   171,709.50 : 377,676 = 377,676 : x
2. Step 2: Convert to fraction form
   171,709.50/377,676 = 377,676/x
3. Step 3: Cross multiply
   171,709.50x = 377,676 × 377,676
4. Step 4: Simplify right side
   171,709.50x = 142,639,160,976
5. Step 5: Solve for x
   x = 142,639,160,976/171,709.50
6. Step 6: Final answer
   x = 830,700.46