Finding the Third Proportional to 585,410 and 1,216,744

Step by Step Solution

1. Step 1: Write the proportion equation
   585,410 : 1,216,744 = 1,216,744 : x
2. Step 2: Convert to fraction form
   585,410/1,216,744 = 1,216,744/x
3. Step 3: Cross multiply
   585,410x = 1,216,744 × 1,216,744
4. Step 4: Simplify right side
   585,410x = 1,480,465,961,536
5. Step 5: Solve for x
   x = 1,480,465,961,536/585,410
6. Step 6: Final answer
   x = 2,528,938.63