Finding the Third Proportional to 49,501.50 and 65,639.50

Step by Step Solution

1. Step 1: Write the proportion equation
   49,501.50 : 65,639.50 = 65,639.50 : x
2. Step 2: Convert to fraction form
   49,501.50/65,639.50 = 65,639.50/x
3. Step 3: Cross multiply
   49,501.50x = 65,639.50 × 65,639.50
4. Step 4: Simplify right side
   49,501.50x = 4,308,543,960.25
5. Step 5: Solve for x
   x = 4,308,543,960.25/49,501.50
6. Step 6: Final answer
   x = 87,038.65