Finding the Third Proportional to 2,258,391 and 3,219,231

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258,391 : 3,219,231 = 3,219,231 : x
2. Step 2: Convert to fraction form
   2,258,391/3,219,231 = 3,219,231/x
3. Step 3: Cross multiply
   2,258,391x = 3,219,231 × 3,219,231
4. Step 4: Simplify right side
   2,258,391x = 10,363,448,231,361
5. Step 5: Solve for x
   x = 10,363,448,231,361/2,258,391
6. Step 6: Final answer
   x = 4,588,863.59