Finding the Third Proportional to 851,734 and 1,309,170

Step by Step Solution

1. Step 1: Write the proportion equation
   851,734 : 1,309,170 = 1,309,170 : x
2. Step 2: Convert to fraction form
   851,734/1,309,170 = 1,309,170/x
3. Step 3: Cross multiply
   851,734x = 1,309,170 × 1,309,170
4. Step 4: Simplify right side
   851,734x = 1,713,926,088,900
5. Step 5: Solve for x
   x = 1,713,926,088,900/851,734
6. Step 6: Final answer
   x = 2,012,278.59