Finding the Third Proportional to 42,715 and 65,744.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,715 : 65,744.50 = 65,744.50 : x
2. Step 2: Convert to fraction form
   42,715/65,744.50 = 65,744.50/x
3. Step 3: Cross multiply
   42,715x = 65,744.50 × 65,744.50
4. Step 4: Simplify right side
   42,715x = 4,322,339,280.25
5. Step 5: Solve for x
   x = 4,322,339,280.25/42,715
6. Step 6: Final answer
   x = 101,190.20