Finding the Third Proportional to 122,472 and 288,000.56

Step by Step Solution

1. Step 1: Write the proportion equation
   122,472 : 288,000.56 = 288,000.56 : x
2. Step 2: Convert to fraction form
   122,472/288,000.56 = 288,000.56/x
3. Step 3: Cross multiply
   122,472x = 288,000.56 × 288,000.56
4. Step 4: Simplify right side
   122,472x = 82,944,324,000.32
5. Step 5: Solve for x
   x = 82,944,324,000.32/122,472
6. Step 6: Final answer
   x = 677,251.32