Finding the Third Proportional to 1,797,128 and 3,909,168

Step by Step Solution

1. Step 1: Write the proportion equation
   1,797,128 : 3,909,168 = 3,909,168 : x
2. Step 2: Convert to fraction form
   1,797,128/3,909,168 = 3,909,168/x
3. Step 3: Cross multiply
   1,797,128x = 3,909,168 × 3,909,168
4. Step 4: Simplify right side
   1,797,128x = 15,281,594,452,224
5. Step 5: Solve for x
   x = 15,281,594,452,224/1,797,128
6. Step 6: Final answer
   x = 8,503,342.25