Finding the Third Proportional to 1,586,681 and 3,488,289

Step by Step Solution

1. Step 1: Write the proportion equation
   1,586,681 : 3,488,289 = 3,488,289 : x
2. Step 2: Convert to fraction form
   1,586,681/3,488,289 = 3,488,289/x
3. Step 3: Cross multiply
   1,586,681x = 3,488,289 × 3,488,289
4. Step 4: Simplify right side
   1,586,681x = 12,168,160,147,521
5. Step 5: Solve for x
   x = 12,168,160,147,521/1,586,681
6. Step 6: Final answer
   x = 7,668,939.22