Finding the Third Proportional to 42,715.50 and 65,745

Step by Step Solution

1. Step 1: Write the proportion equation
   42,715.50 : 65,745 = 65,745 : x
2. Step 2: Convert to fraction form
   42,715.50/65,745 = 65,745/x
3. Step 3: Cross multiply
   42,715.50x = 65,745 × 65,745
4. Step 4: Simplify right side
   42,715.50x = 4,322,405,025
5. Step 5: Solve for x
   x = 4,322,405,025/42,715.50
6. Step 6: Final answer
   x = 101,190.55