Finding the Third Proportional to 40,387.50 and 88,431.75

Step by Step Solution

1. Step 1: Write the proportion equation
   40,387.50 : 88,431.75 = 88,431.75 : x
2. Step 2: Convert to fraction form
   40,387.50/88,431.75 = 88,431.75/x
3. Step 3: Cross multiply
   40,387.50x = 88,431.75 × 88,431.75
4. Step 4: Simplify right side
   40,387.50x = 7,820,174,408.06
5. Step 5: Solve for x
   x = 7,820,174,408.06/40,387.50
6. Step 6: Final answer
   x = 193,628.58