Finding the Third Proportional to 804,870 and 1,089,207

Step by Step Solution

1. Step 1: Write the proportion equation
   804,870 : 1,089,207 = 1,089,207 : x
2. Step 2: Convert to fraction form
   804,870/1,089,207 = 1,089,207/x
3. Step 3: Cross multiply
   804,870x = 1,089,207 × 1,089,207
4. Step 4: Simplify right side
   804,870x = 1,186,371,888,849
5. Step 5: Solve for x
   x = 1,186,371,888,849/804,870
6. Step 6: Final answer
   x = 1,473,991.94