Finding the Third Proportional to 1,005,556 and 1,406,576

Step by Step Solution

1. Step 1: Write the proportion equation
   1,005,556 : 1,406,576 = 1,406,576 : x
2. Step 2: Convert to fraction form
   1,005,556/1,406,576 = 1,406,576/x
3. Step 3: Cross multiply
   1,005,556x = 1,406,576 × 1,406,576
4. Step 4: Simplify right side
   1,005,556x = 1,978,456,043,776
5. Step 5: Solve for x
   x = 1,978,456,043,776/1,005,556
6. Step 6: Final answer
   x = 1,967,524.48