Finding the Third Proportional to 1,005,558 and 1,406,579

Step by Step Solution

1. Step 1: Write the proportion equation
   1,005,558 : 1,406,579 = 1,406,579 : x
2. Step 2: Convert to fraction form
   1,005,558/1,406,579 = 1,406,579/x
3. Step 3: Cross multiply
   1,005,558x = 1,406,579 × 1,406,579
4. Step 4: Simplify right side
   1,005,558x = 1,978,464,483,241
5. Step 5: Solve for x
   x = 1,978,464,483,241/1,005,558
6. Step 6: Final answer
   x = 1,967,528.96