Finding the Third Proportional to 259,222.75 and 563,886

Step by Step Solution

1. Step 1: Write the proportion equation
   259,222.75 : 563,886 = 563,886 : x
2. Step 2: Convert to fraction form
   259,222.75/563,886 = 563,886/x
3. Step 3: Cross multiply
   259,222.75x = 563,886 × 563,886
4. Step 4: Simplify right side
   259,222.75x = 317,967,420,996
5. Step 5: Solve for x
   x = 317,967,420,996/259,222.75
6. Step 6: Final answer
   x = 1,226,618.50