Finding the Third Proportional to 812,760 and 1,265,676

Step by Step Solution

1. Step 1: Write the proportion equation
   812,760 : 1,265,676 = 1,265,676 : x
2. Step 2: Convert to fraction form
   812,760/1,265,676 = 1,265,676/x
3. Step 3: Cross multiply
   812,760x = 1,265,676 × 1,265,676
4. Step 4: Simplify right side
   812,760x = 1,601,935,736,976
5. Step 5: Solve for x
   x = 1,601,935,736,976/812,760
6. Step 6: Final answer
   x = 1,970,982.50