Finding the Third Proportional to 42,738.50 and 62,720

Step by Step Solution

1. Step 1: Write the proportion equation
   42,738.50 : 62,720 = 62,720 : x
2. Step 2: Convert to fraction form
   42,738.50/62,720 = 62,720/x
3. Step 3: Cross multiply
   42,738.50x = 62,720 × 62,720
4. Step 4: Simplify right side
   42,738.50x = 3,933,798,400
5. Step 5: Solve for x
   x = 3,933,798,400/42,738.50
6. Step 6: Final answer
   x = 92,043.44