Finding the Third Proportional to 113,578 and 249,998

Step by Step Solution

1. Step 1: Write the proportion equation
   113,578 : 249,998 = 249,998 : x
2. Step 2: Convert to fraction form
   113,578/249,998 = 249,998/x
3. Step 3: Cross multiply
   113,578x = 249,998 × 249,998
4. Step 4: Simplify right side
   113,578x = 62,499,000,004
5. Step 5: Solve for x
   x = 62,499,000,004/113,578
6. Step 6: Final answer
   x = 550,273.82