Finding the Third Proportional to 1,763,388 and 2,638,260

Step by Step Solution

1. Step 1: Write the proportion equation
   1,763,388 : 2,638,260 = 2,638,260 : x
2. Step 2: Convert to fraction form
   1,763,388/2,638,260 = 2,638,260/x
3. Step 3: Cross multiply
   1,763,388x = 2,638,260 × 2,638,260
4. Step 4: Simplify right side
   1,763,388x = 6,960,415,827,600
5. Step 5: Solve for x
   x = 6,960,415,827,600/1,763,388
6. Step 6: Final answer
   x = 3,947,183.39