Finding the Third Proportional to 1,938,072 and 4,245,336

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938,072 : 4,245,336 = 4,245,336 : x
2. Step 2: Convert to fraction form
   1,938,072/4,245,336 = 4,245,336/x
3. Step 3: Cross multiply
   1,938,072x = 4,245,336 × 4,245,336
4. Step 4: Simplify right side
   1,938,072x = 18,022,877,752,896
5. Step 5: Solve for x
   x = 18,022,877,752,896/1,938,072
6. Step 6: Final answer
   x = 9,299,385.03