Finding the Third Proportional to 264,879 and 563,899.50

Step by Step Solution

1. Step 1: Write the proportion equation
   264,879 : 563,899.50 = 563,899.50 : x
2. Step 2: Convert to fraction form
   264,879/563,899.50 = 563,899.50/x
3. Step 3: Cross multiply
   264,879x = 563,899.50 × 563,899.50
4. Step 4: Simplify right side
   264,879x = 317,982,646,100.25
5. Step 5: Solve for x
   x = 317,982,646,100.25/264,879
6. Step 6: Final answer
   x = 1,200,482.66