Finding the Third Proportional to 40,365.53 and 87,189.54

Step by Step Solution

1. Step 1: Write the proportion equation
   40,365.53 : 87,189.54 = 87,189.54 : x
2. Step 2: Convert to fraction form
   40,365.53/87,189.54 = 87,189.54/x
3. Step 3: Cross multiply
   40,365.53x = 87,189.54 × 87,189.54
4. Step 4: Simplify right side
   40,365.53x = 7,602,015,721.93
5. Step 5: Solve for x
   x = 7,602,015,721.93/40,365.53
6. Step 6: Final answer
   x = 188,329.40