Finding the Third Proportional to 5,707,620 and 8,356,661

Step by Step Solution

1. Step 1: Write the proportion equation
   5,707,620 : 8,356,661 = 8,356,661 : x
2. Step 2: Convert to fraction form
   5,707,620/8,356,661 = 8,356,661/x
3. Step 3: Cross multiply
   5,707,620x = 8,356,661 × 8,356,661
4. Step 4: Simplify right side
   5,707,620x = 69,833,783,068,921
5. Step 5: Solve for x
   x = 69,833,783,068,921/5,707,620
6. Step 6: Final answer
   x = 12,235,184.38