Finding the Third Proportional to 13,533 and 31,390.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,533 : 31,390.50 = 31,390.50 : x
2. Step 2: Convert to fraction form
   13,533/31,390.50 = 31,390.50/x
3. Step 3: Cross multiply
   13,533x = 31,390.50 × 31,390.50
4. Step 4: Simplify right side
   13,533x = 985,363,490.25
5. Step 5: Solve for x
   x = 985,363,490.25/13,533
6. Step 6: Final answer
   x = 72,811.90