Finding the Third Proportional to 1,587,890 and 3,380,606

Step by Step Solution

1. Step 1: Write the proportion equation
   1,587,890 : 3,380,606 = 3,380,606 : x
2. Step 2: Convert to fraction form
   1,587,890/3,380,606 = 3,380,606/x
3. Step 3: Cross multiply
   1,587,890x = 3,380,606 × 3,380,606
4. Step 4: Simplify right side
   1,587,890x = 11,428,496,927,236
5. Step 5: Solve for x
   x = 11,428,496,927,236/1,587,890
6. Step 6: Final answer
   x = 7,197,285.03