Finding the Third Proportional to 3,909,892 and 5,724,870

Step by Step Solution

1. Step 1: Write the proportion equation
   3,909,892 : 5,724,870 = 5,724,870 : x
2. Step 2: Convert to fraction form
   3,909,892/5,724,870 = 5,724,870/x
3. Step 3: Cross multiply
   3,909,892x = 5,724,870 × 5,724,870
4. Step 4: Simplify right side
   3,909,892x = 32,774,136,516,900
5. Step 5: Solve for x
   x = 32,774,136,516,900/3,909,892
6. Step 6: Final answer
   x = 8,382,363.63