Finding the Third Proportional to 1,387.59 and 2,060.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,387.59 : 2,060.25 = 2,060.25 : x
2. Step 2: Convert to fraction form
   1,387.59/2,060.25 = 2,060.25/x
3. Step 3: Cross multiply
   1,387.59x = 2,060.25 × 2,060.25
4. Step 4: Simplify right side
   1,387.59x = 4,244,630.06
5. Step 5: Solve for x
   x = 4,244,630.06/1,387.59
6. Step 6: Final answer
   x = 3,058.99