Finding the Third Proportional to 197,311 and 426,150

Step by Step Solution

1. Step 1: Write the proportion equation
   197,311 : 426,150 = 426,150 : x
2. Step 2: Convert to fraction form
   197,311/426,150 = 426,150/x
3. Step 3: Cross multiply
   197,311x = 426,150 × 426,150
4. Step 4: Simplify right side
   197,311x = 181,603,822,500
5. Step 5: Solve for x
   x = 181,603,822,500/197,311
6. Step 6: Final answer
   x = 920,393.81