Finding the Third Proportional to 1,519.31 and 2,159.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,519.31 : 2,159.72 = 2,159.72 : x
2. Step 2: Convert to fraction form
   1,519.31/2,159.72 = 2,159.72/x
3. Step 3: Cross multiply
   1,519.31x = 2,159.72 × 2,159.72
4. Step 4: Simplify right side
   1,519.31x = 4,664,385.08
5. Step 5: Solve for x
   x = 4,664,385.08/1,519.31
6. Step 6: Final answer
   x = 3,070.06