Finding the Third Proportional to 5,805,428 and 8,120,682

Step by Step Solution

1. Step 1: Write the proportion equation
   5,805,428 : 8,120,682 = 8,120,682 : x
2. Step 2: Convert to fraction form
   5,805,428/8,120,682 = 8,120,682/x
3. Step 3: Cross multiply
   5,805,428x = 8,120,682 × 8,120,682
4. Step 4: Simplify right side
   5,805,428x = 65,945,476,145,124
5. Step 5: Solve for x
   x = 65,945,476,145,124/5,805,428
6. Step 6: Final answer
   x = 11,359,278.96