Finding the Third Proportional to 185,150 and 398,426

Step by Step Solution

1. Step 1: Write the proportion equation
   185,150 : 398,426 = 398,426 : x
2. Step 2: Convert to fraction form
   185,150/398,426 = 398,426/x
3. Step 3: Cross multiply
   185,150x = 398,426 × 398,426
4. Step 4: Simplify right side
   185,150x = 158,743,277,476
5. Step 5: Solve for x
   x = 158,743,277,476/185,150
6. Step 6: Final answer
   x = 857,376.60