Finding the Third Proportional to 43,684 and 65,888

Step by Step Solution

1. Step 1: Write the proportion equation
   43,684 : 65,888 = 65,888 : x
2. Step 2: Convert to fraction form
   43,684/65,888 = 65,888/x
3. Step 3: Cross multiply
   43,684x = 65,888 × 65,888
4. Step 4: Simplify right side
   43,684x = 4,341,228,544
5. Step 5: Solve for x
   x = 4,341,228,544/43,684
6. Step 6: Final answer
   x = 99,378.00