Finding the Third Proportional to 53,716.50 and 116,991

Step by Step Solution

1. Step 1: Write the proportion equation
   53,716.50 : 116,991 = 116,991 : x
2. Step 2: Convert to fraction form
   53,716.50/116,991 = 116,991/x
3. Step 3: Cross multiply
   53,716.50x = 116,991 × 116,991
4. Step 4: Simplify right side
   53,716.50x = 13,686,894,081
5. Step 5: Solve for x
   x = 13,686,894,081/53,716.50
6. Step 6: Final answer
   x = 254,798.69