Finding the Third Proportional to 9,870.47 and 15,510.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,870.47 : 15,510.38 = 15,510.38 : x
2. Step 2: Convert to fraction form
   9,870.47/15,510.38 = 15,510.38/x
3. Step 3: Cross multiply
   9,870.47x = 15,510.38 × 15,510.38
4. Step 4: Simplify right side
   9,870.47x = 240,571,732.64
5. Step 5: Solve for x
   x = 240,571,732.64/9,870.47
6. Step 6: Final answer
   x = 24,372.88