Finding the Third Proportional to 1,283.63 and 2,680.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,283.63 : 2,680.88 = 2,680.88 : x
2. Step 2: Convert to fraction form
   1,283.63/2,680.88 = 2,680.88/x
3. Step 3: Cross multiply
   1,283.63x = 2,680.88 × 2,680.88
4. Step 4: Simplify right side
   1,283.63x = 7,187,090.77
5. Step 5: Solve for x
   x = 7,187,090.77/1,283.63
6. Step 6: Final answer
   x = 5,599.06