Finding the Third Proportional to 1,488.38 and 2,319.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.38 : 2,319.89 = 2,319.89 : x
2. Step 2: Convert to fraction form
   1,488.38/2,319.89 = 2,319.89/x
3. Step 3: Cross multiply
   1,488.38x = 2,319.89 × 2,319.89
4. Step 4: Simplify right side
   1,488.38x = 5,381,892.51
5. Step 5: Solve for x
   x = 5,381,892.51/1,488.38
6. Step 6: Final answer
   x = 3,615.95