Finding the Third Proportional to 768,691 and 1,123,414

Step by Step Solution

1. Step 1: Write the proportion equation
   768,691 : 1,123,414 = 1,123,414 : x
2. Step 2: Convert to fraction form
   768,691/1,123,414 = 1,123,414/x
3. Step 3: Cross multiply
   768,691x = 1,123,414 × 1,123,414
4. Step 4: Simplify right side
   768,691x = 1,262,059,015,396
5. Step 5: Solve for x
   x = 1,262,059,015,396/768,691
6. Step 6: Final answer
   x = 1,641,828.79