Finding the Third Proportional to 1,308.66 and 1,503.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308.66 : 1,503.56 = 1,503.56 : x
2. Step 2: Convert to fraction form
   1,308.66/1,503.56 = 1,503.56/x
3. Step 3: Cross multiply
   1,308.66x = 1,503.56 × 1,503.56
4. Step 4: Simplify right side
   1,308.66x = 2,260,700.19
5. Step 5: Solve for x
   x = 2,260,700.19/1,308.66
6. Step 6: Final answer
   x = 1,727.50