Finding the Third Proportional to 10,687.50 and 15,302.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,687.50 : 15,302.25 = 15,302.25 : x
2. Step 2: Convert to fraction form
   10,687.50/15,302.25 = 15,302.25/x
3. Step 3: Cross multiply
   10,687.50x = 15,302.25 × 15,302.25
4. Step 4: Simplify right side
   10,687.50x = 234,158,855.06
5. Step 5: Solve for x
   x = 234,158,855.06/10,687.50
6. Step 6: Final answer
   x = 21,909.60