Finding the Third Proportional to 1,903,412 and 4,120,456

Step by Step Solution

1. Step 1: Write the proportion equation
   1,903,412 : 4,120,456 = 4,120,456 : x
2. Step 2: Convert to fraction form
   1,903,412/4,120,456 = 4,120,456/x
3. Step 3: Cross multiply
   1,903,412x = 4,120,456 × 4,120,456
4. Step 4: Simplify right side
   1,903,412x = 16,978,157,647,936
5. Step 5: Solve for x
   x = 16,978,157,647,936/1,903,412
6. Step 6: Final answer
   x = 8,919,854.27