Finding the Third Proportional to 646,822 and 1,360,670

Step by Step Solution

1. Step 1: Write the proportion equation
   646,822 : 1,360,670 = 1,360,670 : x
2. Step 2: Convert to fraction form
   646,822/1,360,670 = 1,360,670/x
3. Step 3: Cross multiply
   646,822x = 1,360,670 × 1,360,670
4. Step 4: Simplify right side
   646,822x = 1,851,422,848,900
5. Step 5: Solve for x
   x = 1,851,422,848,900/646,822
6. Step 6: Final answer
   x = 2,862,337.47