Finding the Third Proportional to 5,709,623 and 8,406,727

Step by Step Solution

1. Step 1: Write the proportion equation
   5,709,623 : 8,406,727 = 8,406,727 : x
2. Step 2: Convert to fraction form
   5,709,623/8,406,727 = 8,406,727/x
3. Step 3: Cross multiply
   5,709,623x = 8,406,727 × 8,406,727
4. Step 4: Simplify right side
   5,709,623x = 70,673,058,852,529
5. Step 5: Solve for x
   x = 70,673,058,852,529/5,709,623
6. Step 6: Final answer
   x = 12,377,885.34