Finding the Third Proportional to 34,315.50 and 54,799.50

Step by Step Solution

1. Step 1: Write the proportion equation
   34,315.50 : 54,799.50 = 54,799.50 : x
2. Step 2: Convert to fraction form
   34,315.50/54,799.50 = 54,799.50/x
3. Step 3: Cross multiply
   34,315.50x = 54,799.50 × 54,799.50
4. Step 4: Simplify right side
   34,315.50x = 3,002,985,200.25
5. Step 5: Solve for x
   x = 3,002,985,200.25/34,315.50
6. Step 6: Final answer
   x = 87,511.04