Finding the Third Proportional to 189,392.25 and 408,828

Step by Step Solution

1. Step 1: Write the proportion equation
   189,392.25 : 408,828 = 408,828 : x
2. Step 2: Convert to fraction form
   189,392.25/408,828 = 408,828/x
3. Step 3: Cross multiply
   189,392.25x = 408,828 × 408,828
4. Step 4: Simplify right side
   189,392.25x = 167,140,333,584
5. Step 5: Solve for x
   x = 167,140,333,584/189,392.25
6. Step 6: Final answer
   x = 882,508.83