Finding the Third Proportional to 166,093 and 389,930

Step by Step Solution

1. Step 1: Write the proportion equation
   166,093 : 389,930 = 389,930 : x
2. Step 2: Convert to fraction form
   166,093/389,930 = 389,930/x
3. Step 3: Cross multiply
   166,093x = 389,930 × 389,930
4. Step 4: Simplify right side
   166,093x = 152,045,404,900
5. Step 5: Solve for x
   x = 152,045,404,900/166,093
6. Step 6: Final answer
   x = 915,423.32