Finding the Third Proportional to 166,605 and 237,442.50

Step by Step Solution

1. Step 1: Write the proportion equation
   166,605 : 237,442.50 = 237,442.50 : x
2. Step 2: Convert to fraction form
   166,605/237,442.50 = 237,442.50/x
3. Step 3: Cross multiply
   166,605x = 237,442.50 × 237,442.50
4. Step 4: Simplify right side
   166,605x = 56,378,940,806.25
5. Step 5: Solve for x
   x = 56,378,940,806.25/166,605
6. Step 6: Final answer
   x = 338,398.85