Finding the Third Proportional to 42,079.50 and 65,650.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,079.50 : 65,650.50 = 65,650.50 : x
2. Step 2: Convert to fraction form
   42,079.50/65,650.50 = 65,650.50/x
3. Step 3: Cross multiply
   42,079.50x = 65,650.50 × 65,650.50
4. Step 4: Simplify right side
   42,079.50x = 4,309,988,150.25
5. Step 5: Solve for x
   x = 4,309,988,150.25/42,079.50
6. Step 6: Final answer
   x = 102,424.89