Finding the Third Proportional to 1,228,436 and 2,658,088

Step by Step Solution

1. Step 1: Write the proportion equation
   1,228,436 : 2,658,088 = 2,658,088 : x
2. Step 2: Convert to fraction form
   1,228,436/2,658,088 = 2,658,088/x
3. Step 3: Cross multiply
   1,228,436x = 2,658,088 × 2,658,088
4. Step 4: Simplify right side
   1,228,436x = 7,065,431,815,744
5. Step 5: Solve for x
   x = 7,065,431,815,744/1,228,436
6. Step 6: Final answer
   x = 5,751,566.88