Finding the Third Proportional to 9,742.50 and 20,700

Step by Step Solution

1. Step 1: Write the proportion equation
   9,742.50 : 20,700 = 20,700 : x
2. Step 2: Convert to fraction form
   9,742.50/20,700 = 20,700/x
3. Step 3: Cross multiply
   9,742.50x = 20,700 × 20,700
4. Step 4: Simplify right side
   9,742.50x = 428,490,000
5. Step 5: Solve for x
   x = 428,490,000/9,742.50
6. Step 6: Final answer
   x = 43,981.52