Finding the Third Proportional to 585,468 and 1,216,872

Step by Step Solution

1. Step 1: Write the proportion equation
   585,468 : 1,216,872 = 1,216,872 : x
2. Step 2: Convert to fraction form
   585,468/1,216,872 = 1,216,872/x
3. Step 3: Cross multiply
   585,468x = 1,216,872 × 1,216,872
4. Step 4: Simplify right side
   585,468x = 1,480,777,464,384
5. Step 5: Solve for x
   x = 1,480,777,464,384/585,468
6. Step 6: Final answer
   x = 2,529,220.15