Finding the Third Proportional to 1,187,544 and 2,588,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,187,544 : 2,588,216 = 2,588,216 : x
2. Step 2: Convert to fraction form
   1,187,544/2,588,216 = 2,588,216/x
3. Step 3: Cross multiply
   1,187,544x = 2,588,216 × 2,588,216
4. Step 4: Simplify right side
   1,187,544x = 6,698,862,062,656
5. Step 5: Solve for x
   x = 6,698,862,062,656/1,187,544
6. Step 6: Final answer
   x = 5,640,937.99