Finding the Third Proportional to 187,464 and 404,870

Step by Step Solution

1. Step 1: Write the proportion equation
   187,464 : 404,870 = 404,870 : x
2. Step 2: Convert to fraction form
   187,464/404,870 = 404,870/x
3. Step 3: Cross multiply
   187,464x = 404,870 × 404,870
4. Step 4: Simplify right side
   187,464x = 163,919,716,900
5. Step 5: Solve for x
   x = 163,919,716,900/187,464
6. Step 6: Final answer
   x = 874,406.38