Finding the Third Proportional to 5,805,414 and 8,120,661

Step by Step Solution

1. Step 1: Write the proportion equation
   5,805,414 : 8,120,661 = 8,120,661 : x
2. Step 2: Convert to fraction form
   5,805,414/8,120,661 = 8,120,661/x
3. Step 3: Cross multiply
   5,805,414x = 8,120,661 × 8,120,661
4. Step 4: Simplify right side
   5,805,414x = 65,945,135,076,921
5. Step 5: Solve for x
   x = 65,945,135,076,921/5,805,414
6. Step 6: Final answer
   x = 11,359,247.61