Finding the Third Proportional to 54,378 and 89,995.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,378 : 89,995.50 = 89,995.50 : x
2. Step 2: Convert to fraction form
   54,378/89,995.50 = 89,995.50/x
3. Step 3: Cross multiply
   54,378x = 89,995.50 × 89,995.50
4. Step 4: Simplify right side
   54,378x = 8,099,190,020.25
5. Step 5: Solve for x
   x = 8,099,190,020.25/54,378
6. Step 6: Final answer
   x = 148,942.40