Finding the Third Proportional to 1,142,778 and 2,380,138

Step by Step Solution

1. Step 1: Write the proportion equation
   1,142,778 : 2,380,138 = 2,380,138 : x
2. Step 2: Convert to fraction form
   1,142,778/2,380,138 = 2,380,138/x
3. Step 3: Cross multiply
   1,142,778x = 2,380,138 × 2,380,138
4. Step 4: Simplify right side
   1,142,778x = 5,665,056,899,044
5. Step 5: Solve for x
   x = 5,665,056,899,044/1,142,778
6. Step 6: Final answer
   x = 4,957,268.08