Finding the Third Proportional to 266,208 and 581,542.50

Step by Step Solution

1. Step 1: Write the proportion equation
   266,208 : 581,542.50 = 581,542.50 : x
2. Step 2: Convert to fraction form
   266,208/581,542.50 = 581,542.50/x
3. Step 3: Cross multiply
   266,208x = 581,542.50 × 581,542.50
4. Step 4: Simplify right side
   266,208x = 338,191,679,306.25
5. Step 5: Solve for x
   x = 338,191,679,306.25/266,208
6. Step 6: Final answer
   x = 1,270,403.89