Finding the Third Proportional to 229,318.50 and 539,574

Step by Step Solution

1. Step 1: Write the proportion equation
   229,318.50 : 539,574 = 539,574 : x
2. Step 2: Convert to fraction form
   229,318.50/539,574 = 539,574/x
3. Step 3: Cross multiply
   229,318.50x = 539,574 × 539,574
4. Step 4: Simplify right side
   229,318.50x = 291,140,101,476
5. Step 5: Solve for x
   x = 291,140,101,476/229,318.50
6. Step 6: Final answer
   x = 1,269,588.37