Finding the Third Proportional to 1,009,040 and 2,155,168

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009,040 : 2,155,168 = 2,155,168 : x
2. Step 2: Convert to fraction form
   1,009,040/2,155,168 = 2,155,168/x
3. Step 3: Cross multiply
   1,009,040x = 2,155,168 × 2,155,168
4. Step 4: Simplify right side
   1,009,040x = 4,644,749,108,224
5. Step 5: Solve for x
   x = 4,644,749,108,224/1,009,040
6. Step 6: Final answer
   x = 4,603,136.75