Finding the Third Proportional to 646,554 and 1,405,022

Step by Step Solution

1. Step 1: Write the proportion equation
   646,554 : 1,405,022 = 1,405,022 : x
2. Step 2: Convert to fraction form
   646,554/1,405,022 = 1,405,022/x
3. Step 3: Cross multiply
   646,554x = 1,405,022 × 1,405,022
4. Step 4: Simplify right side
   646,554x = 1,974,086,820,484
5. Step 5: Solve for x
   x = 1,974,086,820,484/646,554
6. Step 6: Final answer
   x = 3,053,243.53