Finding the Third Proportional to 1,278,283 and 2,736,123

Step by Step Solution

1. Step 1: Write the proportion equation
   1,278,283 : 2,736,123 = 2,736,123 : x
2. Step 2: Convert to fraction form
   1,278,283/2,736,123 = 2,736,123/x
3. Step 3: Cross multiply
   1,278,283x = 2,736,123 × 2,736,123
4. Step 4: Simplify right side
   1,278,283x = 7,486,369,071,129
5. Step 5: Solve for x
   x = 7,486,369,071,129/1,278,283
6. Step 6: Final answer
   x = 5,856,581.89