Finding the Third Proportional to 2,379,672 and 4,639,788

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379,672 : 4,639,788 = 4,639,788 : x
2. Step 2: Convert to fraction form
   2,379,672/4,639,788 = 4,639,788/x
3. Step 3: Cross multiply
   2,379,672x = 4,639,788 × 4,639,788
4. Step 4: Simplify right side
   2,379,672x = 21,527,632,684,944
5. Step 5: Solve for x
   x = 21,527,632,684,944/2,379,672
6. Step 6: Final answer
   x = 9,046,470.56