Finding the Third Proportional to 812,770 and 1,265,693

Step by Step Solution

1. Step 1: Write the proportion equation
   812,770 : 1,265,693 = 1,265,693 : x
2. Step 2: Convert to fraction form
   812,770/1,265,693 = 1,265,693/x
3. Step 3: Cross multiply
   812,770x = 1,265,693 × 1,265,693
4. Step 4: Simplify right side
   812,770x = 1,601,978,770,249
5. Step 5: Solve for x
   x = 1,601,978,770,249/812,770
6. Step 6: Final answer
   x = 1,971,011.20