Finding the Third Proportional to 406,978 and 883,986

Step by Step Solution

1. Step 1: Write the proportion equation
   406,978 : 883,986 = 883,986 : x
2. Step 2: Convert to fraction form
   406,978/883,986 = 883,986/x
3. Step 3: Cross multiply
   406,978x = 883,986 × 883,986
4. Step 4: Simplify right side
   406,978x = 781,431,248,196
5. Step 5: Solve for x
   x = 781,431,248,196/406,978
6. Step 6: Final answer
   x = 1,920,082.29