Finding the Third Proportional to 812,757 and 1,265,670

Step by Step Solution

1. Step 1: Write the proportion equation
   812,757 : 1,265,670 = 1,265,670 : x
2. Step 2: Convert to fraction form
   812,757/1,265,670 = 1,265,670/x
3. Step 3: Cross multiply
   812,757x = 1,265,670 × 1,265,670
4. Step 4: Simplify right side
   812,757x = 1,601,920,548,900
5. Step 5: Solve for x
   x = 1,601,920,548,900/812,757
6. Step 6: Final answer
   x = 1,970,971.09