Finding the Third Proportional to 845,040 and 1,878,990

Step by Step Solution

1. Step 1: Write the proportion equation
   845,040 : 1,878,990 = 1,878,990 : x
2. Step 2: Convert to fraction form
   845,040/1,878,990 = 1,878,990/x
3. Step 3: Cross multiply
   845,040x = 1,878,990 × 1,878,990
4. Step 4: Simplify right side
   845,040x = 3,530,603,420,100
5. Step 5: Solve for x
   x = 3,530,603,420,100/845,040
6. Step 6: Final answer
   x = 4,178,031.12