Finding the Third Proportional to 1,157,978 and 2,551,548

Step by Step Solution

1. Step 1: Write the proportion equation
   1,157,978 : 2,551,548 = 2,551,548 : x
2. Step 2: Convert to fraction form
   1,157,978/2,551,548 = 2,551,548/x
3. Step 3: Cross multiply
   1,157,978x = 2,551,548 × 2,551,548
4. Step 4: Simplify right side
   1,157,978x = 6,510,397,196,304
5. Step 5: Solve for x
   x = 6,510,397,196,304/1,157,978
6. Step 6: Final answer
   x = 5,622,211.47