Finding the Third Proportional to 1,012,916 and 2,161,424

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012,916 : 2,161,424 = 2,161,424 : x
2. Step 2: Convert to fraction form
   1,012,916/2,161,424 = 2,161,424/x
3. Step 3: Cross multiply
   1,012,916x = 2,161,424 × 2,161,424
4. Step 4: Simplify right side
   1,012,916x = 4,671,753,707,776
5. Step 5: Solve for x
   x = 4,671,753,707,776/1,012,916
6. Step 6: Final answer
   x = 4,612,182.76