Finding the Third Proportional to 576,422 and 1,259,870

Step by Step Solution

1. Step 1: Write the proportion equation
   576,422 : 1,259,870 = 1,259,870 : x
2. Step 2: Convert to fraction form
   576,422/1,259,870 = 1,259,870/x
3. Step 3: Cross multiply
   576,422x = 1,259,870 × 1,259,870
4. Step 4: Simplify right side
   576,422x = 1,587,272,416,900
5. Step 5: Solve for x
   x = 1,587,272,416,900/576,422
6. Step 6: Final answer
   x = 2,753,663.84