Finding the Third Proportional to 13,288.50 and 19,356.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,288.50 : 19,356.75 = 19,356.75 : x
2. Step 2: Convert to fraction form
   13,288.50/19,356.75 = 19,356.75/x
3. Step 3: Cross multiply
   13,288.50x = 19,356.75 × 19,356.75
4. Step 4: Simplify right side
   13,288.50x = 374,683,770.56
5. Step 5: Solve for x
   x = 374,683,770.56/13,288.50
6. Step 6: Final answer
   x = 28,196.09