Finding the Third Proportional to 644,752 and 1,384,656

Step by Step Solution

1. Step 1: Write the proportion equation
   644,752 : 1,384,656 = 1,384,656 : x
2. Step 2: Convert to fraction form
   644,752/1,384,656 = 1,384,656/x
3. Step 3: Cross multiply
   644,752x = 1,384,656 × 1,384,656
4. Step 4: Simplify right side
   644,752x = 1,917,272,238,336
5. Step 5: Solve for x
   x = 1,917,272,238,336/644,752
6. Step 6: Final answer
   x = 2,973,658.46