Finding the Third Proportional to 1,326,216 and 2,039,664

Step by Step Solution

1. Step 1: Write the proportion equation
   1,326,216 : 2,039,664 = 2,039,664 : x
2. Step 2: Convert to fraction form
   1,326,216/2,039,664 = 2,039,664/x
3. Step 3: Cross multiply
   1,326,216x = 2,039,664 × 2,039,664
4. Step 4: Simplify right side
   1,326,216x = 4,160,229,232,896
5. Step 5: Solve for x
   x = 4,160,229,232,896/1,326,216
6. Step 6: Final answer
   x = 3,136,916.79