Finding the Third Proportional to 13,837.78 and 21,485.67

Step by Step Solution

1. Step 1: Write the proportion equation
   13,837.78 : 21,485.67 = 21,485.67 : x
2. Step 2: Convert to fraction form
   13,837.78/21,485.67 = 21,485.67/x
3. Step 3: Cross multiply
   13,837.78x = 21,485.67 × 21,485.67
4. Step 4: Simplify right side
   13,837.78x = 461,634,095.92
5. Step 5: Solve for x
   x = 461,634,095.92/13,837.78
6. Step 6: Final answer
   x = 33,360.41