Finding the Third Proportional to 767.81 and 1,123.03

Step by Step Solution

1. Step 1: Write the proportion equation
   767.81 : 1,123.03 = 1,123.03 : x
2. Step 2: Convert to fraction form
   767.81/1,123.03 = 1,123.03/x
3. Step 3: Cross multiply
   767.81x = 1,123.03 × 1,123.03
4. Step 4: Simplify right side
   767.81x = 1,261,199.19
5. Step 5: Solve for x
   x = 1,261,199.19/767.81
6. Step 6: Final answer
   x = 1,642.59