Finding the Third Proportional to 811,442 and 1,261,412

Step by Step Solution

1. Step 1: Write the proportion equation
   811,442 : 1,261,412 = 1,261,412 : x
2. Step 2: Convert to fraction form
   811,442/1,261,412 = 1,261,412/x
3. Step 3: Cross multiply
   811,442x = 1,261,412 × 1,261,412
4. Step 4: Simplify right side
   811,442x = 1,591,160,233,744
5. Step 5: Solve for x
   x = 1,591,160,233,744/811,442
6. Step 6: Final answer
   x = 1,960,904.46