Finding the Third Proportional to 191,017.50 and 397,734

Step by Step Solution

1. Step 1: Write the proportion equation
   191,017.50 : 397,734 = 397,734 : x
2. Step 2: Convert to fraction form
   191,017.50/397,734 = 397,734/x
3. Step 3: Cross multiply
   191,017.50x = 397,734 × 397,734
4. Step 4: Simplify right side
   191,017.50x = 158,192,334,756
5. Step 5: Solve for x
   x = 158,192,334,756/191,017.50
6. Step 6: Final answer
   x = 828,156.24