Finding the Third Proportional to 13,065.05 and 14,978.67

Step by Step Solution

1. Step 1: Write the proportion equation
   13,065.05 : 14,978.67 = 14,978.67 : x
2. Step 2: Convert to fraction form
   13,065.05/14,978.67 = 14,978.67/x
3. Step 3: Cross multiply
   13,065.05x = 14,978.67 × 14,978.67
4. Step 4: Simplify right side
   13,065.05x = 224,360,611.14
5. Step 5: Solve for x
   x = 224,360,611.14/13,065.05
6. Step 6: Final answer
   x = 17,172.58