Finding the Third Proportional to 197,208 and 309,025.50

Step by Step Solution

1. Step 1: Write the proportion equation
   197,208 : 309,025.50 = 309,025.50 : x
2. Step 2: Convert to fraction form
   197,208/309,025.50 = 309,025.50/x
3. Step 3: Cross multiply
   197,208x = 309,025.50 × 309,025.50
4. Step 4: Simplify right side
   197,208x = 95,496,759,650.25
5. Step 5: Solve for x
   x = 95,496,759,650.25/197,208
6. Step 6: Final answer
   x = 484,243.84