Finding the Third Proportional to 907.59 and 1,396.83

Step by Step Solution

1. Step 1: Write the proportion equation
   907.59 : 1,396.83 = 1,396.83 : x
2. Step 2: Convert to fraction form
   907.59/1,396.83 = 1,396.83/x
3. Step 3: Cross multiply
   907.59x = 1,396.83 × 1,396.83
4. Step 4: Simplify right side
   907.59x = 1,951,128.81
5. Step 5: Solve for x
   x = 1,951,128.81/907.59
6. Step 6: Final answer
   x = 2,149.78