Finding the Third Proportional to 585,460 and 1,216,856

Step by Step Solution

1. Step 1: Write the proportion equation
   585,460 : 1,216,856 = 1,216,856 : x
2. Step 2: Convert to fraction form
   585,460/1,216,856 = 1,216,856/x
3. Step 3: Cross multiply
   585,460x = 1,216,856 × 1,216,856
4. Step 4: Simplify right side
   585,460x = 1,480,738,524,736
5. Step 5: Solve for x
   x = 1,480,738,524,736/585,460
6. Step 6: Final answer
   x = 2,529,188.20