Finding the Third Proportional to 2,143,142 and 3,242,265

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,142 : 3,242,265 = 3,242,265 : x
2. Step 2: Convert to fraction form
   2,143,142/3,242,265 = 3,242,265/x
3. Step 3: Cross multiply
   2,143,142x = 3,242,265 × 3,242,265
4. Step 4: Simplify right side
   2,143,142x = 10,512,282,330,225
5. Step 5: Solve for x
   x = 10,512,282,330,225/2,143,142
6. Step 6: Final answer
   x = 4,905,079.71