Finding the Third Proportional to 4,782.52 and 10,143.98

Step by Step Solution

1. Step 1: Write the proportion equation
   4,782.52 : 10,143.98 = 10,143.98 : x
2. Step 2: Convert to fraction form
   4,782.52/10,143.98 = 10,143.98/x
3. Step 3: Cross multiply
   4,782.52x = 10,143.98 × 10,143.98
4. Step 4: Simplify right side
   4,782.52x = 102,900,419.00
5. Step 5: Solve for x
   x = 102,900,419.00/4,782.52
6. Step 6: Final answer
   x = 21,515.96