Finding the Third Proportional to 931.31 and 1,354.69

Step by Step Solution

1. Step 1: Write the proportion equation
   931.31 : 1,354.69 = 1,354.69 : x
2. Step 2: Convert to fraction form
   931.31/1,354.69 = 1,354.69/x
3. Step 3: Cross multiply
   931.31x = 1,354.69 × 1,354.69
4. Step 4: Simplify right side
   931.31x = 1,835,178.22
5. Step 5: Solve for x
   x = 1,835,178.22/931.31
6. Step 6: Final answer
   x = 1,970.53