Finding the Third Proportional to 40,395.50 and 87,243.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,395.50 : 87,243.50 = 87,243.50 : x
2. Step 2: Convert to fraction form
   40,395.50/87,243.50 = 87,243.50/x
3. Step 3: Cross multiply
   40,395.50x = 87,243.50 × 87,243.50
4. Step 4: Simplify right side
   40,395.50x = 7,611,428,292.25
5. Step 5: Solve for x
   x = 7,611,428,292.25/40,395.50
6. Step 6: Final answer
   x = 188,422.68