Finding the Third Proportional to 13,109.25 and 28,405.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,109.25 : 28,405.50 = 28,405.50 : x
2. Step 2: Convert to fraction form
   13,109.25/28,405.50 = 28,405.50/x
3. Step 3: Cross multiply
   13,109.25x = 28,405.50 × 28,405.50
4. Step 4: Simplify right side
   13,109.25x = 806,872,430.25
5. Step 5: Solve for x
   x = 806,872,430.25/13,109.25
6. Step 6: Final answer
   x = 61,549.85