Finding the Third Proportional to 1,903,889 and 3,965,240

Step by Step Solution

1. Step 1: Write the proportion equation
   1,903,889 : 3,965,240 = 3,965,240 : x
2. Step 2: Convert to fraction form
   1,903,889/3,965,240 = 3,965,240/x
3. Step 3: Cross multiply
   1,903,889x = 3,965,240 × 3,965,240
4. Step 4: Simplify right side
   1,903,889x = 15,723,128,257,600
5. Step 5: Solve for x
   x = 15,723,128,257,600/1,903,889
6. Step 6: Final answer
   x = 8,258,426.97