Finding the Third Proportional to 185,455 and 397,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   185,455 : 397,147.50 = 397,147.50 : x
2. Step 2: Convert to fraction form
   185,455/397,147.50 = 397,147.50/x
3. Step 3: Cross multiply
   185,455x = 397,147.50 × 397,147.50
4. Step 4: Simplify right side
   185,455x = 157,726,136,756.25
5. Step 5: Solve for x
   x = 157,726,136,756.25/185,455
6. Step 6: Final answer
   x = 850,481.99