Finding the Third Proportional to 349,381.69 and 494,479.69

Step by Step Solution

1. Step 1: Write the proportion equation
   349,381.69 : 494,479.69 = 494,479.69 : x
2. Step 2: Convert to fraction form
   349,381.69/494,479.69 = 494,479.69/x
3. Step 3: Cross multiply
   349,381.69x = 494,479.69 × 494,479.69
4. Step 4: Simplify right side
   349,381.69x = 244,510,161,350.10
5. Step 5: Solve for x
   x = 244,510,161,350.10/349,381.69
6. Step 6: Final answer
   x = 699,836.80