Finding the Third Proportional to 43,877.63 and 91,128.75

Step by Step Solution

1. Step 1: Write the proportion equation
   43,877.63 : 91,128.75 = 91,128.75 : x
2. Step 2: Convert to fraction form
   43,877.63/91,128.75 = 91,128.75/x
3. Step 3: Cross multiply
   43,877.63x = 91,128.75 × 91,128.75
4. Step 4: Simplify right side
   43,877.63x = 8,304,449,076.56
5. Step 5: Solve for x
   x = 8,304,449,076.56/43,877.63
6. Step 6: Final answer
   x = 189,263.87