Finding the Third Proportional to 2,591,477.25 and 5,638,739

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591,477.25 : 5,638,739 = 5,638,739 : x
2. Step 2: Convert to fraction form
   2,591,477.25/5,638,739 = 5,638,739/x
3. Step 3: Cross multiply
   2,591,477.25x = 5,638,739 × 5,638,739
4. Step 4: Simplify right side
   2,591,477.25x = 31,795,377,510,121
5. Step 5: Solve for x
   x = 31,795,377,510,121/2,591,477.25
6. Step 6: Final answer
   x = 12,269,209.58