Finding the Third Proportional to 1,488.56 and 1,623.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.56 : 1,623.56 = 1,623.56 : x
2. Step 2: Convert to fraction form
   1,488.56/1,623.56 = 1,623.56/x
3. Step 3: Cross multiply
   1,488.56x = 1,623.56 × 1,623.56
4. Step 4: Simplify right side
   1,488.56x = 2,635,955.19
5. Step 5: Solve for x
   x = 2,635,955.19/1,488.56
6. Step 6: Final answer
   x = 1,770.81