Finding the Third Proportional to 20,763.94 and 31,139.47

Step by Step Solution

1. Step 1: Write the proportion equation
   20,763.94 : 31,139.47 = 31,139.47 : x
2. Step 2: Convert to fraction form
   20,763.94/31,139.47 = 31,139.47/x
3. Step 3: Cross multiply
   20,763.94x = 31,139.47 × 31,139.47
4. Step 4: Simplify right side
   20,763.94x = 969,666,514.03
5. Step 5: Solve for x
   x = 969,666,514.03/20,763.94
6. Step 6: Final answer
   x = 46,699.55