Finding the Third Proportional to 810,588 and 1,216,314

Step by Step Solution

1. Step 1: Write the proportion equation
   810,588 : 1,216,314 = 1,216,314 : x
2. Step 2: Convert to fraction form
   810,588/1,216,314 = 1,216,314/x
3. Step 3: Cross multiply
   810,588x = 1,216,314 × 1,216,314
4. Step 4: Simplify right side
   810,588x = 1,479,419,746,596
5. Step 5: Solve for x
   x = 1,479,419,746,596/810,588
6. Step 6: Final answer
   x = 1,825,119.23