Finding the Third Proportional to 5,709,744 and 8,406,900

Step by Step Solution

1. Step 1: Write the proportion equation
   5,709,744 : 8,406,900 = 8,406,900 : x
2. Step 2: Convert to fraction form
   5,709,744/8,406,900 = 8,406,900/x
3. Step 3: Cross multiply
   5,709,744x = 8,406,900 × 8,406,900
4. Step 4: Simplify right side
   5,709,744x = 70,675,967,610,000
5. Step 5: Solve for x
   x = 70,675,967,610,000/5,709,744
6. Step 6: Final answer
   x = 12,378,132.47