Finding the Third Proportional to 646,769 and 1,360,569

Step by Step Solution

1. Step 1: Write the proportion equation
   646,769 : 1,360,569 = 1,360,569 : x
2. Step 2: Convert to fraction form
   646,769/1,360,569 = 1,360,569/x
3. Step 3: Cross multiply
   646,769x = 1,360,569 × 1,360,569
4. Step 4: Simplify right side
   646,769x = 1,851,148,003,761
5. Step 5: Solve for x
   x = 1,851,148,003,761/646,769
6. Step 6: Final answer
   x = 2,862,147.08