Finding the Third Proportional to 1,659,215 and 3,485,290

Step by Step Solution

1. Step 1: Write the proportion equation
   1,659,215 : 3,485,290 = 3,485,290 : x
2. Step 2: Convert to fraction form
   1,659,215/3,485,290 = 3,485,290/x
3. Step 3: Cross multiply
   1,659,215x = 3,485,290 × 3,485,290
4. Step 4: Simplify right side
   1,659,215x = 12,147,246,384,100
5. Step 5: Solve for x
   x = 12,147,246,384,100/1,659,215
6. Step 6: Final answer
   x = 7,321,080.38