Finding the Third Proportional to 1,586,600 and 3,488,128

Step by Step Solution

1. Step 1: Write the proportion equation
   1,586,600 : 3,488,128 = 3,488,128 : x
2. Step 2: Convert to fraction form
   1,586,600/3,488,128 = 3,488,128/x
3. Step 3: Cross multiply
   1,586,600x = 3,488,128 × 3,488,128
4. Step 4: Simplify right side
   1,586,600x = 12,167,036,944,384
5. Step 5: Solve for x
   x = 12,167,036,944,384/1,586,600
6. Step 6: Final answer
   x = 7,668,622.81