Finding the Third Proportional to 197,311.50 and 426,150.50

Step by Step Solution

1. Step 1: Write the proportion equation
   197,311.50 : 426,150.50 = 426,150.50 : x
2. Step 2: Convert to fraction form
   197,311.50/426,150.50 = 426,150.50/x
3. Step 3: Cross multiply
   197,311.50x = 426,150.50 × 426,150.50
4. Step 4: Simplify right side
   197,311.50x = 181,604,248,650.25
5. Step 5: Solve for x
   x = 181,604,248,650.25/197,311.50
6. Step 6: Final answer
   x = 920,393.63