Finding the Third Proportional to 35,391 and 54,940.50

Step by Step Solution

1. Step 1: Write the proportion equation
   35,391 : 54,940.50 = 54,940.50 : x
2. Step 2: Convert to fraction form
   35,391/54,940.50 = 54,940.50/x
3. Step 3: Cross multiply
   35,391x = 54,940.50 × 54,940.50
4. Step 4: Simplify right side
   35,391x = 3,018,458,540.25
5. Step 5: Solve for x
   x = 3,018,458,540.25/35,391
6. Step 6: Final answer
   x = 85,288.87