Finding the Third Proportional to 269,139.75 and 576,903

Step by Step Solution

1. Step 1: Write the proportion equation
   269,139.75 : 576,903 = 576,903 : x
2. Step 2: Convert to fraction form
   269,139.75/576,903 = 576,903/x
3. Step 3: Cross multiply
   269,139.75x = 576,903 × 576,903
4. Step 4: Simplify right side
   269,139.75x = 332,817,071,409
5. Step 5: Solve for x
   x = 332,817,071,409/269,139.75
6. Step 6: Final answer
   x = 1,236,595.75