Finding the Third Proportional to 804,960 and 1,089,339

Step by Step Solution

1. Step 1: Write the proportion equation
   804,960 : 1,089,339 = 1,089,339 : x
2. Step 2: Convert to fraction form
   804,960/1,089,339 = 1,089,339/x
3. Step 3: Cross multiply
   804,960x = 1,089,339 × 1,089,339
4. Step 4: Simplify right side
   804,960x = 1,186,659,456,921
5. Step 5: Solve for x
   x = 1,186,659,456,921/804,960
6. Step 6: Final answer
   x = 1,474,184.38