Finding the Third Proportional to 71,436.94 and 105,021.56

Step by Step Solution

1. Step 1: Write the proportion equation
   71,436.94 : 105,021.56 = 105,021.56 : x
2. Step 2: Convert to fraction form
   71,436.94/105,021.56 = 105,021.56/x
3. Step 3: Cross multiply
   71,436.94x = 105,021.56 × 105,021.56
4. Step 4: Simplify right side
   71,436.94x = 11,029,528,589.94
5. Step 5: Solve for x
   x = 11,029,528,589.94/71,436.94
6. Step 6: Final answer
   x = 154,395.32