Finding the Third Proportional to 1,878,865 and 4,188,028

Step by Step Solution

1. Step 1: Write the proportion equation
   1,878,865 : 4,188,028 = 4,188,028 : x
2. Step 2: Convert to fraction form
   1,878,865/4,188,028 = 4,188,028/x
3. Step 3: Cross multiply
   1,878,865x = 4,188,028 × 4,188,028
4. Step 4: Simplify right side
   1,878,865x = 17,539,578,528,784
5. Step 5: Solve for x
   x = 17,539,578,528,784/1,878,865
6. Step 6: Final answer
   x = 9,335,198.93