Finding the Third Proportional to 20,039.50 and 31,272

Step by Step Solution

1. Step 1: Write the proportion equation
   20,039.50 : 31,272 = 31,272 : x
2. Step 2: Convert to fraction form
   20,039.50/31,272 = 31,272/x
3. Step 3: Cross multiply
   20,039.50x = 31,272 × 31,272
4. Step 4: Simplify right side
   20,039.50x = 977,937,984
5. Step 5: Solve for x
   x = 977,937,984/20,039.50
6. Step 6: Final answer
   x = 48,800.52