Finding the Third Proportional to 399,082 and 886,736

Step by Step Solution

1. Step 1: Write the proportion equation
   399,082 : 886,736 = 886,736 : x
2. Step 2: Convert to fraction form
   399,082/886,736 = 886,736/x
3. Step 3: Cross multiply
   399,082x = 886,736 × 886,736
4. Step 4: Simplify right side
   399,082x = 786,300,733,696
5. Step 5: Solve for x
   x = 786,300,733,696/399,082
6. Step 6: Final answer
   x = 1,970,273.61