Finding the Third Proportional to 715,155 and 1,489,116

Step by Step Solution

1. Step 1: Write the proportion equation
   715,155 : 1,489,116 = 1,489,116 : x
2. Step 2: Convert to fraction form
   715,155/1,489,116 = 1,489,116/x
3. Step 3: Cross multiply
   715,155x = 1,489,116 × 1,489,116
4. Step 4: Simplify right side
   715,155x = 2,217,466,461,456
5. Step 5: Solve for x
   x = 2,217,466,461,456/715,155
6. Step 6: Final answer
   x = 3,100,679.52