Finding the Third Proportional to 804,592 and 1,215,089

Step by Step Solution

1. Step 1: Write the proportion equation
   804,592 : 1,215,089 = 1,215,089 : x
2. Step 2: Convert to fraction form
   804,592/1,215,089 = 1,215,089/x
3. Step 3: Cross multiply
   804,592x = 1,215,089 × 1,215,089
4. Step 4: Simplify right side
   804,592x = 1,476,441,277,921
5. Step 5: Solve for x
   x = 1,476,441,277,921/804,592
6. Step 6: Final answer
   x = 1,835,018.59