Finding the Third Proportional to 186,256.13 and 404,920.69

Step by Step Solution

1. Step 1: Write the proportion equation
   186,256.13 : 404,920.69 = 404,920.69 : x
2. Step 2: Convert to fraction form
   186,256.13/404,920.69 = 404,920.69/x
3. Step 3: Cross multiply
   186,256.13x = 404,920.69 × 404,920.69
4. Step 4: Simplify right side
   186,256.13x = 163,960,763,165.47
5. Step 5: Solve for x
   x = 163,960,763,165.47/186,256.13
6. Step 6: Final answer
   x = 880,297.30