Finding the Third Proportional to 13,432.50 and 18,790.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,432.50 : 18,790.31 = 18,790.31 : x
2. Step 2: Convert to fraction form
   13,432.50/18,790.31 = 18,790.31/x
3. Step 3: Cross multiply
   13,432.50x = 18,790.31 × 18,790.31
4. Step 4: Simplify right side
   13,432.50x = 353,075,843.85
5. Step 5: Solve for x
   x = 353,075,843.85/13,432.50
6. Step 6: Final answer
   x = 26,285.19