Finding the Third Proportional to 708,949 and 1,089,705

Step by Step Solution

1. Step 1: Write the proportion equation
   708,949 : 1,089,705 = 1,089,705 : x
2. Step 2: Convert to fraction form
   708,949/1,089,705 = 1,089,705/x
3. Step 3: Cross multiply
   708,949x = 1,089,705 × 1,089,705
4. Step 4: Simplify right side
   708,949x = 1,187,456,987,025
5. Step 5: Solve for x
   x = 1,187,456,987,025/708,949
6. Step 6: Final answer
   x = 1,674,954.03