Finding the Third Proportional to 256,754.81 and 554,105.25

Step by Step Solution

1. Step 1: Write the proportion equation
   256,754.81 : 554,105.25 = 554,105.25 : x
2. Step 2: Convert to fraction form
   256,754.81/554,105.25 = 554,105.25/x
3. Step 3: Cross multiply
   256,754.81x = 554,105.25 × 554,105.25
4. Step 4: Simplify right side
   256,754.81x = 307,032,628,077.56
5. Step 5: Solve for x
   x = 307,032,628,077.56/256,754.81
6. Step 6: Final answer
   x = 1,195,820.34