Finding the Third Proportional to 531,686 and 1,166,719

Step by Step Solution

1. Step 1: Write the proportion equation
   531,686 : 1,166,719 = 1,166,719 : x
2. Step 2: Convert to fraction form
   531,686/1,166,719 = 1,166,719/x
3. Step 3: Cross multiply
   531,686x = 1,166,719 × 1,166,719
4. Step 4: Simplify right side
   531,686x = 1,361,233,224,961
5. Step 5: Solve for x
   x = 1,361,233,224,961/531,686
6. Step 6: Final answer
   x = 2,560,220.18