Finding the Third Proportional to 48,140 and 65,578

Step by Step Solution

1. Step 1: Write the proportion equation
   48,140 : 65,578 = 65,578 : x
2. Step 2: Convert to fraction form
   48,140/65,578 = 65,578/x
3. Step 3: Cross multiply
   48,140x = 65,578 × 65,578
4. Step 4: Simplify right side
   48,140x = 4,300,474,084
5. Step 5: Solve for x
   x = 4,300,474,084/48,140
6. Step 6: Final answer
   x = 89,332.66