Finding the Third Proportional to 329,932 and 494,890

Step by Step Solution

1. Step 1: Write the proportion equation
   329,932 : 494,890 = 494,890 : x
2. Step 2: Convert to fraction form
   329,932/494,890 = 494,890/x
3. Step 3: Cross multiply
   329,932x = 494,890 × 494,890
4. Step 4: Simplify right side
   329,932x = 244,916,112,100
5. Step 5: Solve for x
   x = 244,916,112,100/329,932
6. Step 6: Final answer
   x = 742,323.00