Finding the Third Proportional to 197,443.50 and 288,759

Step by Step Solution

1. Step 1: Write the proportion equation
   197,443.50 : 288,759 = 288,759 : x
2. Step 2: Convert to fraction form
   197,443.50/288,759 = 288,759/x
3. Step 3: Cross multiply
   197,443.50x = 288,759 × 288,759
4. Step 4: Simplify right side
   197,443.50x = 83,381,760,081
5. Step 5: Solve for x
   x = 83,381,760,081/197,443.50
6. Step 6: Final answer
   x = 422,306.94