Finding the Third Proportional to 20,428.88 and 31,566.38

Step by Step Solution

1. Step 1: Write the proportion equation
   20,428.88 : 31,566.38 = 31,566.38 : x
2. Step 2: Convert to fraction form
   20,428.88/31,566.38 = 31,566.38/x
3. Step 3: Cross multiply
   20,428.88x = 31,566.38 × 31,566.38
4. Step 4: Simplify right side
   20,428.88x = 996,436,030.64
5. Step 5: Solve for x
   x = 996,436,030.64/20,428.88
6. Step 6: Final answer
   x = 48,775.86