Finding the Third Proportional to 39,369.38 and 53,039.81

Step by Step Solution

1. Step 1: Write the proportion equation
   39,369.38 : 53,039.81 = 53,039.81 : x
2. Step 2: Convert to fraction form
   39,369.38/53,039.81 = 53,039.81/x
3. Step 3: Cross multiply
   39,369.38x = 53,039.81 × 53,039.81
4. Step 4: Simplify right side
   39,369.38x = 2,813,221,710.04
5. Step 5: Solve for x
   x = 2,813,221,710.04/39,369.38
6. Step 6: Final answer
   x = 71,457.11