Finding the Third Proportional to 182,488 and 400,504

Step by Step Solution

1. Step 1: Write the proportion equation
   182,488 : 400,504 = 400,504 : x
2. Step 2: Convert to fraction form
   182,488/400,504 = 400,504/x
3. Step 3: Cross multiply
   182,488x = 400,504 × 400,504
4. Step 4: Simplify right side
   182,488x = 160,403,454,016
5. Step 5: Solve for x
   x = 160,403,454,016/182,488
6. Step 6: Final answer
   x = 878,980.83