Finding the Third Proportional to 171,389 and 371,380.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,389 : 371,380.50 = 371,380.50 : x
2. Step 2: Convert to fraction form
   171,389/371,380.50 = 371,380.50/x
3. Step 3: Cross multiply
   171,389x = 371,380.50 × 371,380.50
4. Step 4: Simplify right side
   171,389x = 137,923,475,780.25
5. Step 5: Solve for x
   x = 137,923,475,780.25/171,389
6. Step 6: Final answer
   x = 804,739.37