Finding the Third Proportional to 166,580 and 245,460

Step by Step Solution

1. Step 1: Write the proportion equation
   166,580 : 245,460 = 245,460 : x
2. Step 2: Convert to fraction form
   166,580/245,460 = 245,460/x
3. Step 3: Cross multiply
   166,580x = 245,460 × 245,460
4. Step 4: Simplify right side
   166,580x = 60,250,611,600
5. Step 5: Solve for x
   x = 60,250,611,600/166,580
6. Step 6: Final answer
   x = 361,691.75