Finding the Third Proportional to 5,805,426 and 8,120,679

Step by Step Solution

1. Step 1: Write the proportion equation
   5,805,426 : 8,120,679 = 8,120,679 : x
2. Step 2: Convert to fraction form
   5,805,426/8,120,679 = 8,120,679/x
3. Step 3: Cross multiply
   5,805,426x = 8,120,679 × 8,120,679
4. Step 4: Simplify right side
   5,805,426x = 65,945,427,421,041
5. Step 5: Solve for x
   x = 65,945,427,421,041/5,805,426
6. Step 6: Final answer
   x = 11,359,274.48