Finding the Third Proportional to 1,112,620 and 2,278,134

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112,620 : 2,278,134 = 2,278,134 : x
2. Step 2: Convert to fraction form
   1,112,620/2,278,134 = 2,278,134/x
3. Step 3: Cross multiply
   1,112,620x = 2,278,134 × 2,278,134
4. Step 4: Simplify right side
   1,112,620x = 5,189,894,521,956
5. Step 5: Solve for x
   x = 5,189,894,521,956/1,112,620
6. Step 6: Final answer
   x = 4,664,570.58