Finding the Third Proportional to 33,761.81 and 53,991.56

Step by Step Solution

1. Step 1: Write the proportion equation
   33,761.81 : 53,991.56 = 53,991.56 : x
2. Step 2: Convert to fraction form
   33,761.81/53,991.56 = 53,991.56/x
3. Step 3: Cross multiply
   33,761.81x = 53,991.56 × 53,991.56
4. Step 4: Simplify right side
   33,761.81x = 2,915,088,821.19
5. Step 5: Solve for x
   x = 2,915,088,821.19/33,761.81
6. Step 6: Final answer
   x = 86,342.78