Finding the Third Proportional to 1,551,258 and 3,290,328

Step by Step Solution

1. Step 1: Write the proportion equation
   1,551,258 : 3,290,328 = 3,290,328 : x
2. Step 2: Convert to fraction form
   1,551,258/3,290,328 = 3,290,328/x
3. Step 3: Cross multiply
   1,551,258x = 3,290,328 × 3,290,328
4. Step 4: Simplify right side
   1,551,258x = 10,826,258,347,584
5. Step 5: Solve for x
   x = 10,826,258,347,584/1,551,258
6. Step 6: Final answer
   x = 6,979,018.54