Finding the Third Proportional to 194,840 and 404,987

Step by Step Solution

1. Step 1: Write the proportion equation
   194,840 : 404,987 = 404,987 : x
2. Step 2: Convert to fraction form
   194,840/404,987 = 404,987/x
3. Step 3: Cross multiply
   194,840x = 404,987 × 404,987
4. Step 4: Simplify right side
   194,840x = 164,014,470,169
5. Step 5: Solve for x
   x = 164,014,470,169/194,840
6. Step 6: Final answer
   x = 841,790.55