Finding the Third Proportional to 581,760 and 853,488

Step by Step Solution

1. Step 1: Write the proportion equation
   581,760 : 853,488 = 853,488 : x
2. Step 2: Convert to fraction form
   581,760/853,488 = 853,488/x
3. Step 3: Cross multiply
   581,760x = 853,488 × 853,488
4. Step 4: Simplify right side
   581,760x = 728,441,766,144
5. Step 5: Solve for x
   x = 728,441,766,144/581,760
6. Step 6: Final answer
   x = 1,252,134.50