Finding the Third Proportional to 20,427 and 31,018.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,427 : 31,018.50 = 31,018.50 : x
2. Step 2: Convert to fraction form
   20,427/31,018.50 = 31,018.50/x
3. Step 3: Cross multiply
   20,427x = 31,018.50 × 31,018.50
4. Step 4: Simplify right side
   20,427x = 962,147,342.25
5. Step 5: Solve for x
   x = 962,147,342.25/20,427
6. Step 6: Final answer
   x = 47,101.74