Finding the Third Proportional to 197,316 and 426,163.50

Step by Step Solution

1. Step 1: Write the proportion equation
   197,316 : 426,163.50 = 426,163.50 : x
2. Step 2: Convert to fraction form
   197,316/426,163.50 = 426,163.50/x
3. Step 3: Cross multiply
   197,316x = 426,163.50 × 426,163.50
4. Step 4: Simplify right side
   197,316x = 181,615,328,732.25
5. Step 5: Solve for x
   x = 181,615,328,732.25/197,316
6. Step 6: Final answer
   x = 920,428.80