Finding the Third Proportional to 2,154,910 and 3,213,681

Step by Step Solution

1. Step 1: Write the proportion equation
   2,154,910 : 3,213,681 = 3,213,681 : x
2. Step 2: Convert to fraction form
   2,154,910/3,213,681 = 3,213,681/x
3. Step 3: Cross multiply
   2,154,910x = 3,213,681 × 3,213,681
4. Step 4: Simplify right side
   2,154,910x = 10,327,745,569,761
5. Step 5: Solve for x
   x = 10,327,745,569,761/2,154,910
6. Step 6: Final answer
   x = 4,792,657.50