Finding the Third Proportional to 405,066 and 886,380

Step by Step Solution

1. Step 1: Write the proportion equation
   405,066 : 886,380 = 886,380 : x
2. Step 2: Convert to fraction form
   405,066/886,380 = 886,380/x
3. Step 3: Cross multiply
   405,066x = 886,380 × 886,380
4. Step 4: Simplify right side
   405,066x = 785,669,504,400
5. Step 5: Solve for x
   x = 785,669,504,400/405,066
6. Step 6: Final answer
   x = 1,939,608.62