Finding the Third Proportional to 13,077.50 and 20,008.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,077.50 : 20,008.50 = 20,008.50 : x
2. Step 2: Convert to fraction form
   13,077.50/20,008.50 = 20,008.50/x
3. Step 3: Cross multiply
   13,077.50x = 20,008.50 × 20,008.50
4. Step 4: Simplify right side
   13,077.50x = 400,340,072.25
5. Step 5: Solve for x
   x = 400,340,072.25/13,077.50
6. Step 6: Final answer
   x = 30,612.89