Finding the Third Proportional to 20,803.50 and 30,142.13

Step by Step Solution

1. Step 1: Write the proportion equation
   20,803.50 : 30,142.13 = 30,142.13 : x
2. Step 2: Convert to fraction form
   20,803.50/30,142.13 = 30,142.13/x
3. Step 3: Cross multiply
   20,803.50x = 30,142.13 × 30,142.13
4. Step 4: Simplify right side
   20,803.50x = 908,547,699.52
5. Step 5: Solve for x
   x = 908,547,699.52/20,803.50
6. Step 6: Final answer
   x = 43,672.83