Finding the Third Proportional to 240,530 and 373,890

Step by Step Solution

1. Step 1: Write the proportion equation
   240,530 : 373,890 = 373,890 : x
2. Step 2: Convert to fraction form
   240,530/373,890 = 373,890/x
3. Step 3: Cross multiply
   240,530x = 373,890 × 373,890
4. Step 4: Simplify right side
   240,530x = 139,793,732,100
5. Step 5: Solve for x
   x = 139,793,732,100/240,530
6. Step 6: Final answer
   x = 581,190.42