Finding the Third Proportional to 258,166.69 and 559,222.88

Step by Step Solution

1. Step 1: Write the proportion equation
   258,166.69 : 559,222.88 = 559,222.88 : x
2. Step 2: Convert to fraction form
   258,166.69/559,222.88 = 559,222.88/x
3. Step 3: Cross multiply
   258,166.69x = 559,222.88 × 559,222.88
4. Step 4: Simplify right side
   258,166.69x = 312,730,223,923.27
5. Step 5: Solve for x
   x = 312,730,223,923.27/258,166.69
6. Step 6: Final answer
   x = 1,211,350.03