Finding the Third Proportional to 406,840 and 886,007

Step by Step Solution

1. Step 1: Write the proportion equation
   406,840 : 886,007 = 886,007 : x
2. Step 2: Convert to fraction form
   406,840/886,007 = 886,007/x
3. Step 3: Cross multiply
   406,840x = 886,007 × 886,007
4. Step 4: Simplify right side
   406,840x = 785,008,404,049
5. Step 5: Solve for x
   x = 785,008,404,049/406,840
6. Step 6: Final answer
   x = 1,929,526.11