Finding the Third Proportional to 48,603.80 and 65,319.54

Step by Step Solution

1. Step 1: Write the proportion equation
   48,603.80 : 65,319.54 = 65,319.54 : x
2. Step 2: Convert to fraction form
   48,603.80/65,319.54 = 65,319.54/x
3. Step 3: Cross multiply
   48,603.80x = 65,319.54 × 65,319.54
4. Step 4: Simplify right side
   48,603.80x = 4,266,642,183.34
5. Step 5: Solve for x
   x = 4,266,642,183.34/48,603.80
6. Step 6: Final answer
   x = 87,784.13