Finding the Third Proportional to 646,552 and 1,405,018

Step by Step Solution

1. Step 1: Write the proportion equation
   646,552 : 1,405,018 = 1,405,018 : x
2. Step 2: Convert to fraction form
   646,552/1,405,018 = 1,405,018/x
3. Step 3: Cross multiply
   646,552x = 1,405,018 × 1,405,018
4. Step 4: Simplify right side
   646,552x = 1,974,075,580,324
5. Step 5: Solve for x
   x = 1,974,075,580,324/646,552
6. Step 6: Final answer
   x = 3,053,235.59