Finding the Third Proportional to 249,832 and 404,880

Step by Step Solution

1. Step 1: Write the proportion equation
   249,832 : 404,880 = 404,880 : x
2. Step 2: Convert to fraction form
   249,832/404,880 = 404,880/x
3. Step 3: Cross multiply
   249,832x = 404,880 × 404,880
4. Step 4: Simplify right side
   249,832x = 163,927,814,400
5. Step 5: Solve for x
   x = 163,927,814,400/249,832
6. Step 6: Final answer
   x = 656,152.19