Finding the Third Proportional to 867,142 and 1,854,812

Step by Step Solution

1. Step 1: Write the proportion equation
   867,142 : 1,854,812 = 1,854,812 : x
2. Step 2: Convert to fraction form
   867,142/1,854,812 = 1,854,812/x
3. Step 3: Cross multiply
   867,142x = 1,854,812 × 1,854,812
4. Step 4: Simplify right side
   867,142x = 3,440,327,555,344
5. Step 5: Solve for x
   x = 3,440,327,555,344/867,142
6. Step 6: Final answer
   x = 3,967,432.73