Finding the Third Proportional to 189,184 and 395,890

Step by Step Solution

1. Step 1: Write the proportion equation
   189,184 : 395,890 = 395,890 : x
2. Step 2: Convert to fraction form
   189,184/395,890 = 395,890/x
3. Step 3: Cross multiply
   189,184x = 395,890 × 395,890
4. Step 4: Simplify right side
   189,184x = 156,728,892,100
5. Step 5: Solve for x
   x = 156,728,892,100/189,184
6. Step 6: Final answer
   x = 828,446.87