Finding the Third Proportional to 2,139,724 and 3,323,878

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,724 : 3,323,878 = 3,323,878 : x
2. Step 2: Convert to fraction form
   2,139,724/3,323,878 = 3,323,878/x
3. Step 3: Cross multiply
   2,139,724x = 3,323,878 × 3,323,878
4. Step 4: Simplify right side
   2,139,724x = 11,048,164,958,884
5. Step 5: Solve for x
   x = 11,048,164,958,884/2,139,724
6. Step 6: Final answer
   x = 5,163,359.83