Finding the Third Proportional to 804,584 and 1,215,080

Step by Step Solution

1. Step 1: Write the proportion equation
   804,584 : 1,215,080 = 1,215,080 : x
2. Step 2: Convert to fraction form
   804,584/1,215,080 = 1,215,080/x
3. Step 3: Cross multiply
   804,584x = 1,215,080 × 1,215,080
4. Step 4: Simplify right side
   804,584x = 1,476,419,406,400
5. Step 5: Solve for x
   x = 1,476,419,406,400/804,584
6. Step 6: Final answer
   x = 1,835,009.65