Finding the Third Proportional to 3,290,128 and 4,482,240

Step by Step Solution

1. Step 1: Write the proportion equation
   3,290,128 : 4,482,240 = 4,482,240 : x
2. Step 2: Convert to fraction form
   3,290,128/4,482,240 = 4,482,240/x
3. Step 3: Cross multiply
   3,290,128x = 4,482,240 × 4,482,240
4. Step 4: Simplify right side
   3,290,128x = 20,090,475,417,600
5. Step 5: Solve for x
   x = 20,090,475,417,600/3,290,128
6. Step 6: Final answer
   x = 6,106,289.91