Finding the Third Proportional to 621,668 and 1,333,944

Step by Step Solution

1. Step 1: Write the proportion equation
   621,668 : 1,333,944 = 1,333,944 : x
2. Step 2: Convert to fraction form
   621,668/1,333,944 = 1,333,944/x
3. Step 3: Cross multiply
   621,668x = 1,333,944 × 1,333,944
4. Step 4: Simplify right side
   621,668x = 1,779,406,595,136
5. Step 5: Solve for x
   x = 1,779,406,595,136/621,668
6. Step 6: Final answer
   x = 2,862,310.10