Finding the Third Proportional to 20,742 and 31,261.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,742 : 31,261.50 = 31,261.50 : x
2. Step 2: Convert to fraction form
   20,742/31,261.50 = 31,261.50/x
3. Step 3: Cross multiply
   20,742x = 31,261.50 × 31,261.50
4. Step 4: Simplify right side
   20,742x = 977,281,382.25
5. Step 5: Solve for x
   x = 977,281,382.25/20,742
6. Step 6: Final answer
   x = 47,116.06