Finding the Third Proportional to 1,738,638 and 2,659,599

Step by Step Solution

1. Step 1: Write the proportion equation
   1,738,638 : 2,659,599 = 2,659,599 : x
2. Step 2: Convert to fraction form
   1,738,638/2,659,599 = 2,659,599/x
3. Step 3: Cross multiply
   1,738,638x = 2,659,599 × 2,659,599
4. Step 4: Simplify right side
   1,738,638x = 7,073,466,840,801
5. Step 5: Solve for x
   x = 7,073,466,840,801/1,738,638
6. Step 6: Final answer
   x = 4,068,395.40