Finding the Third Proportional to 12,912.75 and 17,030.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,912.75 : 17,030.25 = 17,030.25 : x
2. Step 2: Convert to fraction form
   12,912.75/17,030.25 = 17,030.25/x
3. Step 3: Cross multiply
   12,912.75x = 17,030.25 × 17,030.25
4. Step 4: Simplify right side
   12,912.75x = 290,029,415.06
5. Step 5: Solve for x
   x = 290,029,415.06/12,912.75
6. Step 6: Final answer
   x = 22,460.70