Finding the Third Proportional to 644,550 and 1,382,364

Step by Step Solution

1. Step 1: Write the proportion equation
   644,550 : 1,382,364 = 1,382,364 : x
2. Step 2: Convert to fraction form
   644,550/1,382,364 = 1,382,364/x
3. Step 3: Cross multiply
   644,550x = 1,382,364 × 1,382,364
4. Step 4: Simplify right side
   644,550x = 1,910,930,228,496
5. Step 5: Solve for x
   x = 1,910,930,228,496/644,550
6. Step 6: Final answer
   x = 2,964,750.96