Finding the Third Proportional to 646,596 and 1,405,098

Step by Step Solution

1. Step 1: Write the proportion equation
   646,596 : 1,405,098 = 1,405,098 : x
2. Step 2: Convert to fraction form
   646,596/1,405,098 = 1,405,098/x
3. Step 3: Cross multiply
   646,596x = 1,405,098 × 1,405,098
4. Step 4: Simplify right side
   646,596x = 1,974,300,389,604
5. Step 5: Solve for x
   x = 1,974,300,389,604/646,596
6. Step 6: Final answer
   x = 3,053,375.51