Finding the Third Proportional to 820,372 and 1,259,286

Step by Step Solution

1. Step 1: Write the proportion equation
   820,372 : 1,259,286 = 1,259,286 : x
2. Step 2: Convert to fraction form
   820,372/1,259,286 = 1,259,286/x
3. Step 3: Cross multiply
   820,372x = 1,259,286 × 1,259,286
4. Step 4: Simplify right side
   820,372x = 1,585,801,229,796
5. Step 5: Solve for x
   x = 1,585,801,229,796/820,372
6. Step 6: Final answer
   x = 1,933,027.00