Finding the Third Proportional to 3,413,898 and 5,129,919

Step by Step Solution

1. Step 1: Write the proportion equation
   3,413,898 : 5,129,919 = 5,129,919 : x
2. Step 2: Convert to fraction form
   3,413,898/5,129,919 = 5,129,919/x
3. Step 3: Cross multiply
   3,413,898x = 5,129,919 × 5,129,919
4. Step 4: Simplify right side
   3,413,898x = 26,316,068,946,561
5. Step 5: Solve for x
   x = 26,316,068,946,561/3,413,898
6. Step 6: Final answer
   x = 7,708,510.61