Finding the Third Proportional to 13,430.25 and 27,724.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,430.25 : 27,724.50 = 27,724.50 : x
2. Step 2: Convert to fraction form
   13,430.25/27,724.50 = 27,724.50/x
3. Step 3: Cross multiply
   13,430.25x = 27,724.50 × 27,724.50
4. Step 4: Simplify right side
   13,430.25x = 768,647,900.25
5. Step 5: Solve for x
   x = 768,647,900.25/13,430.25
6. Step 6: Final answer
   x = 57,232.58