Finding the Third Proportional to 1,439,340 and 2,112,306

Step by Step Solution

1. Step 1: Write the proportion equation
   1,439,340 : 2,112,306 = 2,112,306 : x
2. Step 2: Convert to fraction form
   1,439,340/2,112,306 = 2,112,306/x
3. Step 3: Cross multiply
   1,439,340x = 2,112,306 × 2,112,306
4. Step 4: Simplify right side
   1,439,340x = 4,461,836,637,636
5. Step 5: Solve for x
   x = 4,461,836,637,636/1,439,340
6. Step 6: Final answer
   x = 3,099,918.46