Finding the Third Proportional to 20,153.25 and 42,736.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,153.25 : 42,736.50 = 42,736.50 : x
2. Step 2: Convert to fraction form
   20,153.25/42,736.50 = 42,736.50/x
3. Step 3: Cross multiply
   20,153.25x = 42,736.50 × 42,736.50
4. Step 4: Simplify right side
   20,153.25x = 1,826,408,432.25
5. Step 5: Solve for x
   x = 1,826,408,432.25/20,153.25
6. Step 6: Final answer
   x = 90,626.00