Finding the Third Proportional to 54,553.50 and 87,297.75

Step by Step Solution

1. Step 1: Write the proportion equation
   54,553.50 : 87,297.75 = 87,297.75 : x
2. Step 2: Convert to fraction form
   54,553.50/87,297.75 = 87,297.75/x
3. Step 3: Cross multiply
   54,553.50x = 87,297.75 × 87,297.75
4. Step 4: Simplify right side
   54,553.50x = 7,620,897,155.06
5. Step 5: Solve for x
   x = 7,620,897,155.06/54,553.50
6. Step 6: Final answer
   x = 139,695.84