Finding the Third Proportional to 20,851.78 and 45,854.06

Step by Step Solution

1. Step 1: Write the proportion equation
   20,851.78 : 45,854.06 = 45,854.06 : x
2. Step 2: Convert to fraction form
   20,851.78/45,854.06 = 45,854.06/x
3. Step 3: Cross multiply
   20,851.78x = 45,854.06 × 45,854.06
4. Step 4: Simplify right side
   20,851.78x = 2,102,595,047.75
5. Step 5: Solve for x
   x = 2,102,595,047.75/20,851.78
6. Step 6: Final answer
   x = 100,835.27