Finding the Third Proportional to 812,688 and 1,760,976

Step by Step Solution

1. Step 1: Write the proportion equation
   812,688 : 1,760,976 = 1,760,976 : x
2. Step 2: Convert to fraction form
   812,688/1,760,976 = 1,760,976/x
3. Step 3: Cross multiply
   812,688x = 1,760,976 × 1,760,976
4. Step 4: Simplify right side
   812,688x = 3,101,036,472,576
5. Step 5: Solve for x
   x = 3,101,036,472,576/812,688
6. Step 6: Final answer
   x = 3,815,777.36