Finding the Third Proportional to 40,187.81 and 87,294.38

Step by Step Solution

1. Step 1: Write the proportion equation
   40,187.81 : 87,294.38 = 87,294.38 : x
2. Step 2: Convert to fraction form
   40,187.81/87,294.38 = 87,294.38/x
3. Step 3: Cross multiply
   40,187.81x = 87,294.38 × 87,294.38
4. Step 4: Simplify right side
   40,187.81x = 7,620,307,906.64
5. Step 5: Solve for x
   x = 7,620,307,906.64/40,187.81
6. Step 6: Final answer
   x = 189,617.38