Finding the Third Proportional to 812,759 and 1,265,673

Step by Step Solution

1. Step 1: Write the proportion equation
   812,759 : 1,265,673 = 1,265,673 : x
2. Step 2: Convert to fraction form
   812,759/1,265,673 = 1,265,673/x
3. Step 3: Cross multiply
   812,759x = 1,265,673 × 1,265,673
4. Step 4: Simplify right side
   812,759x = 1,601,928,142,929
5. Step 5: Solve for x
   x = 1,601,928,142,929/812,759
6. Step 6: Final answer
   x = 1,970,975.58