Finding the Third Proportional to 13,888.50 and 21,507.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,888.50 : 21,507.75 = 21,507.75 : x
2. Step 2: Convert to fraction form
   13,888.50/21,507.75 = 21,507.75/x
3. Step 3: Cross multiply
   13,888.50x = 21,507.75 × 21,507.75
4. Step 4: Simplify right side
   13,888.50x = 462,583,310.06
5. Step 5: Solve for x
   x = 462,583,310.06/13,888.50
6. Step 6: Final answer
   x = 33,306.93