Finding the Third Proportional to 1,284,272 and 1,889,168

Step by Step Solution

1. Step 1: Write the proportion equation
   1,284,272 : 1,889,168 = 1,889,168 : x
2. Step 2: Convert to fraction form
   1,284,272/1,889,168 = 1,889,168/x
3. Step 3: Cross multiply
   1,284,272x = 1,889,168 × 1,889,168
4. Step 4: Simplify right side
   1,284,272x = 3,568,955,732,224
5. Step 5: Solve for x
   x = 3,568,955,732,224/1,284,272
6. Step 6: Final answer
   x = 2,778,971.85