Finding the Third Proportional to 10,230.74 and 13,748.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,230.74 : 13,748.31 = 13,748.31 : x
2. Step 2: Convert to fraction form
   10,230.74/13,748.31 = 13,748.31/x
3. Step 3: Cross multiply
   10,230.74x = 13,748.31 × 13,748.31
4. Step 4: Simplify right side
   10,230.74x = 189,015,928.77
5. Step 5: Solve for x
   x = 189,015,928.77/10,230.74
6. Step 6: Final answer
   x = 18,475.30