Finding the Third Proportional to 264,853.50 and 543,667.50

Step by Step Solution

1. Step 1: Write the proportion equation
   264,853.50 : 543,667.50 = 543,667.50 : x
2. Step 2: Convert to fraction form
   264,853.50/543,667.50 = 543,667.50/x
3. Step 3: Cross multiply
   264,853.50x = 543,667.50 × 543,667.50
4. Step 4: Simplify right side
   264,853.50x = 295,574,350,556.25
5. Step 5: Solve for x
   x = 295,574,350,556.25/264,853.50
6. Step 6: Final answer
   x = 1,115,991.86