Finding the Third Proportional to 912.56 and 1,300.31

Step by Step Solution

1. Step 1: Write the proportion equation
   912.56 : 1,300.31 = 1,300.31 : x
2. Step 2: Convert to fraction form
   912.56/1,300.31 = 1,300.31/x
3. Step 3: Cross multiply
   912.56x = 1,300.31 × 1,300.31
4. Step 4: Simplify right side
   912.56x = 1,690,812.60
5. Step 5: Solve for x
   x = 1,690,812.60/912.56
6. Step 6: Final answer
   x = 1,852.82