Finding the Third Proportional to 812,756 and 1,779,666

Step by Step Solution

1. Step 1: Write the proportion equation
   812,756 : 1,779,666 = 1,779,666 : x
2. Step 2: Convert to fraction form
   812,756/1,779,666 = 1,779,666/x
3. Step 3: Cross multiply
   812,756x = 1,779,666 × 1,779,666
4. Step 4: Simplify right side
   812,756x = 3,167,211,071,556
5. Step 5: Solve for x
   x = 3,167,211,071,556/812,756
6. Step 6: Final answer
   x = 3,896,878.12