Finding the Third Proportional to 1,938,864 and 4,126,560

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938,864 : 4,126,560 = 4,126,560 : x
2. Step 2: Convert to fraction form
   1,938,864/4,126,560 = 4,126,560/x
3. Step 3: Cross multiply
   1,938,864x = 4,126,560 × 4,126,560
4. Step 4: Simplify right side
   1,938,864x = 17,028,497,433,600
5. Step 5: Solve for x
   x = 17,028,497,433,600/1,938,864
6. Step 6: Final answer
   x = 8,782,718.87