Finding the Third Proportional to 1,221,120 and 1,867,936

Step by Step Solution

1. Step 1: Write the proportion equation
   1,221,120 : 1,867,936 = 1,867,936 : x
2. Step 2: Convert to fraction form
   1,221,120/1,867,936 = 1,867,936/x
3. Step 3: Cross multiply
   1,221,120x = 1,867,936 × 1,867,936
4. Step 4: Simplify right side
   1,221,120x = 3,489,184,900,096
5. Step 5: Solve for x
   x = 3,489,184,900,096/1,221,120
6. Step 6: Final answer
   x = 2,857,364.47