Finding the Third Proportional to 13,511.25 and 31,558.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,511.25 : 31,558.50 = 31,558.50 : x
2. Step 2: Convert to fraction form
   13,511.25/31,558.50 = 31,558.50/x
3. Step 3: Cross multiply
   13,511.25x = 31,558.50 × 31,558.50
4. Step 4: Simplify right side
   13,511.25x = 995,938,922.25
5. Step 5: Solve for x
   x = 995,938,922.25/13,511.25
6. Step 6: Final answer
   x = 73,711.83