Finding the Third Proportional to 2,590,128 and 4,054,260

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590,128 : 4,054,260 = 4,054,260 : x
2. Step 2: Convert to fraction form
   2,590,128/4,054,260 = 4,054,260/x
3. Step 3: Cross multiply
   2,590,128x = 4,054,260 × 4,054,260
4. Step 4: Simplify right side
   2,590,128x = 16,437,024,147,600
5. Step 5: Solve for x
   x = 16,437,024,147,600/2,590,128
6. Step 6: Final answer
   x = 6,346,027.74