Finding the Third Proportional to 253,315.69 and 538,813.69

Step by Step Solution

1. Step 1: Write the proportion equation
   253,315.69 : 538,813.69 = 538,813.69 : x
2. Step 2: Convert to fraction form
   253,315.69/538,813.69 = 538,813.69/x
3. Step 3: Cross multiply
   253,315.69x = 538,813.69 × 538,813.69
4. Step 4: Simplify right side
   253,315.69x = 290,320,189,837.35
5. Step 5: Solve for x
   x = 290,320,189,837.35/253,315.69
6. Step 6: Final answer
   x = 1,146,080.58