Finding the Third Proportional to 1,715.91 and 2,087.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,715.91 : 2,087.30 = 2,087.30 : x
2. Step 2: Convert to fraction form
   1,715.91/2,087.30 = 2,087.30/x
3. Step 3: Cross multiply
   1,715.91x = 2,087.30 × 2,087.30
4. Step 4: Simplify right side
   1,715.91x = 4,356,808.24
5. Step 5: Solve for x
   x = 4,356,808.24/1,715.91
6. Step 6: Final answer
   x = 2,539.07