Finding the Third Proportional to 643,338 and 1,375,023

Step by Step Solution

1. Step 1: Write the proportion equation
   643,338 : 1,375,023 = 1,375,023 : x
2. Step 2: Convert to fraction form
   643,338/1,375,023 = 1,375,023/x
3. Step 3: Cross multiply
   643,338x = 1,375,023 × 1,375,023
4. Step 4: Simplify right side
   643,338x = 1,890,688,250,529
5. Step 5: Solve for x
   x = 1,890,688,250,529/643,338
6. Step 6: Final answer
   x = 2,938,872.34