Finding the Third Proportional to 166,102.50 and 389,952

Step by Step Solution

1. Step 1: Write the proportion equation
   166,102.50 : 389,952 = 389,952 : x
2. Step 2: Convert to fraction form
   166,102.50/389,952 = 389,952/x
3. Step 3: Cross multiply
   166,102.50x = 389,952 × 389,952
4. Step 4: Simplify right side
   166,102.50x = 152,062,562,304
5. Step 5: Solve for x
   x = 152,062,562,304/166,102.50
6. Step 6: Final answer
   x = 915,474.25