Finding the Third Proportional to 13,888.50 and 21,510.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,888.50 : 21,510.75 = 21,510.75 : x
2. Step 2: Convert to fraction form
   13,888.50/21,510.75 = 21,510.75/x
3. Step 3: Cross multiply
   13,888.50x = 21,510.75 × 21,510.75
4. Step 4: Simplify right side
   13,888.50x = 462,712,365.56
5. Step 5: Solve for x
   x = 462,712,365.56/13,888.50
6. Step 6: Final answer
   x = 33,316.22