Finding the Third Proportional to 49,501.25 and 65,639.25

Step by Step Solution

1. Step 1: Write the proportion equation
   49,501.25 : 65,639.25 = 65,639.25 : x
2. Step 2: Convert to fraction form
   49,501.25/65,639.25 = 65,639.25/x
3. Step 3: Cross multiply
   49,501.25x = 65,639.25 × 65,639.25
4. Step 4: Simplify right side
   49,501.25x = 4,308,511,140.56
5. Step 5: Solve for x
   x = 4,308,511,140.56/49,501.25
6. Step 6: Final answer
   x = 87,038.43