Finding the Third Proportional to 644,922 and 1,377,810

Step by Step Solution

1. Step 1: Write the proportion equation
   644,922 : 1,377,810 = 1,377,810 : x
2. Step 2: Convert to fraction form
   644,922/1,377,810 = 1,377,810/x
3. Step 3: Cross multiply
   644,922x = 1,377,810 × 1,377,810
4. Step 4: Simplify right side
   644,922x = 1,898,360,396,100
5. Step 5: Solve for x
   x = 1,898,360,396,100/644,922
6. Step 6: Final answer
   x = 2,943,550.38