Finding the Third Proportional to 42,688.69 and 65,957.84

Step by Step Solution

1. Step 1: Write the proportion equation
   42,688.69 : 65,957.84 = 65,957.84 : x
2. Step 2: Convert to fraction form
   42,688.69/65,957.84 = 65,957.84/x
3. Step 3: Cross multiply
   42,688.69x = 65,957.84 × 65,957.84
4. Step 4: Simplify right side
   42,688.69x = 4,350,436,121.56
5. Step 5: Solve for x
   x = 4,350,436,121.56/42,688.69
6. Step 6: Final answer
   x = 101,910.75