Finding the Third Proportional to 931.69 and 1,385.06

Step by Step Solution

1. Step 1: Write the proportion equation
   931.69 : 1,385.06 = 1,385.06 : x
2. Step 2: Convert to fraction form
   931.69/1,385.06 = 1,385.06/x
3. Step 3: Cross multiply
   931.69x = 1,385.06 × 1,385.06
4. Step 4: Simplify right side
   931.69x = 1,918,398.13
5. Step 5: Solve for x
   x = 1,918,398.13/931.69
6. Step 6: Final answer
   x = 2,059.06