Finding the Third Proportional to 812,774 and 1,288,045

Step by Step Solution

1. Step 1: Write the proportion equation
   812,774 : 1,288,045 = 1,288,045 : x
2. Step 2: Convert to fraction form
   812,774/1,288,045 = 1,288,045/x
3. Step 3: Cross multiply
   812,774x = 1,288,045 × 1,288,045
4. Step 4: Simplify right side
   812,774x = 1,659,059,922,025
5. Step 5: Solve for x
   x = 1,659,059,922,025/812,774
6. Step 6: Final answer
   x = 2,041,231.54