Finding the Third Proportional to 644,548 and 1,382,360

Step by Step Solution

1. Step 1: Write the proportion equation
   644,548 : 1,382,360 = 1,382,360 : x
2. Step 2: Convert to fraction form
   644,548/1,382,360 = 1,382,360/x
3. Step 3: Cross multiply
   644,548x = 1,382,360 × 1,382,360
4. Step 4: Simplify right side
   644,548x = 1,910,919,169,600
5. Step 5: Solve for x
   x = 1,910,919,169,600/644,548
6. Step 6: Final answer
   x = 2,964,743.00