Finding the Third Proportional to 20,306.53 and 30,291.47

Step by Step Solution

1. Step 1: Write the proportion equation
   20,306.53 : 30,291.47 = 30,291.47 : x
2. Step 2: Convert to fraction form
   20,306.53/30,291.47 = 30,291.47/x
3. Step 3: Cross multiply
   20,306.53x = 30,291.47 × 30,291.47
4. Step 4: Simplify right side
   20,306.53x = 917,573,079.03
5. Step 5: Solve for x
   x = 917,573,079.03/20,306.53
6. Step 6: Final answer
   x = 45,186.11