Finding the Third Proportional to 2,660,128 and 4,127,410

Step by Step Solution

1. Step 1: Write the proportion equation
   2,660,128 : 4,127,410 = 4,127,410 : x
2. Step 2: Convert to fraction form
   2,660,128/4,127,410 = 4,127,410/x
3. Step 3: Cross multiply
   2,660,128x = 4,127,410 × 4,127,410
4. Step 4: Simplify right side
   2,660,128x = 17,035,513,308,100
5. Step 5: Solve for x
   x = 17,035,513,308,100/2,660,128
6. Step 6: Final answer
   x = 6,404,020.15