Finding the Third Proportional to 3,412,639 and 5,155,251

Step by Step Solution

1. Step 1: Write the proportion equation
   3,412,639 : 5,155,251 = 5,155,251 : x
2. Step 2: Convert to fraction form
   3,412,639/5,155,251 = 5,155,251/x
3. Step 3: Cross multiply
   3,412,639x = 5,155,251 × 5,155,251
4. Step 4: Simplify right side
   3,412,639x = 26,576,612,873,001
5. Step 5: Solve for x
   x = 26,576,612,873,001/3,412,639
6. Step 6: Final answer
   x = 7,787,701.21