Finding the Third Proportional to 5,179,212 and 7,840,746

Step by Step Solution

1. Step 1: Write the proportion equation
   5,179,212 : 7,840,746 = 7,840,746 : x
2. Step 2: Convert to fraction form
   5,179,212/7,840,746 = 7,840,746/x
3. Step 3: Cross multiply
   5,179,212x = 7,840,746 × 7,840,746
4. Step 4: Simplify right side
   5,179,212x = 61,477,297,836,516
5. Step 5: Solve for x
   x = 61,477,297,836,516/5,179,212
6. Step 6: Final answer
   x = 11,870,009.92