Finding the Third Proportional to 711,144 and 1,080,540

Step by Step Solution

1. Step 1: Write the proportion equation
   711,144 : 1,080,540 = 1,080,540 : x
2. Step 2: Convert to fraction form
   711,144/1,080,540 = 1,080,540/x
3. Step 3: Cross multiply
   711,144x = 1,080,540 × 1,080,540
4. Step 4: Simplify right side
   711,144x = 1,167,566,691,600
5. Step 5: Solve for x
   x = 1,167,566,691,600/711,144
6. Step 6: Final answer
   x = 1,641,814.73