Finding the Third Proportional to 1,142,778 and 2,437,431

Step by Step Solution

1. Step 1: Write the proportion equation
   1,142,778 : 2,437,431 = 2,437,431 : x
2. Step 2: Convert to fraction form
   1,142,778/2,437,431 = 2,437,431/x
3. Step 3: Cross multiply
   1,142,778x = 2,437,431 × 2,437,431
4. Step 4: Simplify right side
   1,142,778x = 5,941,069,879,761
5. Step 5: Solve for x
   x = 5,941,069,879,761/1,142,778
6. Step 6: Final answer
   x = 5,198,796.16