Finding the Third Proportional to 644,500 and 1,382,344

Step by Step Solution

1. Step 1: Write the proportion equation
   644,500 : 1,382,344 = 1,382,344 : x
2. Step 2: Convert to fraction form
   644,500/1,382,344 = 1,382,344/x
3. Step 3: Cross multiply
   644,500x = 1,382,344 × 1,382,344
4. Step 4: Simplify right side
   644,500x = 1,910,874,934,336
5. Step 5: Solve for x
   x = 1,910,874,934,336/644,500
6. Step 6: Final answer
   x = 2,964,895.17