Finding the Third Proportional to 1,210,316 and 1,644,543

Step by Step Solution

1. Step 1: Write the proportion equation
   1,210,316 : 1,644,543 = 1,644,543 : x
2. Step 2: Convert to fraction form
   1,210,316/1,644,543 = 1,644,543/x
3. Step 3: Cross multiply
   1,210,316x = 1,644,543 × 1,644,543
4. Step 4: Simplify right side
   1,210,316x = 2,704,521,678,849
5. Step 5: Solve for x
   x = 2,704,521,678,849/1,210,316
6. Step 6: Final answer
   x = 2,234,558.31