Finding the Third Proportional to 665,624 and 1,436,216

Step by Step Solution

1. Step 1: Write the proportion equation
   665,624 : 1,436,216 = 1,436,216 : x
2. Step 2: Convert to fraction form
   665,624/1,436,216 = 1,436,216/x
3. Step 3: Cross multiply
   665,624x = 1,436,216 × 1,436,216
4. Step 4: Simplify right side
   665,624x = 2,062,716,398,656
5. Step 5: Solve for x
   x = 2,062,716,398,656/665,624
6. Step 6: Final answer
   x = 3,098,921.31