Finding the Third Proportional to 189,896 and 404,336

Step by Step Solution

1. Step 1: Write the proportion equation
   189,896 : 404,336 = 404,336 : x
2. Step 2: Convert to fraction form
   189,896/404,336 = 404,336/x
3. Step 3: Cross multiply
   189,896x = 404,336 × 404,336
4. Step 4: Simplify right side
   189,896x = 163,487,600,896
5. Step 5: Solve for x
   x = 163,487,600,896/189,896
6. Step 6: Final answer
   x = 860,932.30