Finding the Third Proportional to 43,688 and 65,894

Step by Step Solution

1. Step 1: Write the proportion equation
   43,688 : 65,894 = 65,894 : x
2. Step 2: Convert to fraction form
   43,688/65,894 = 65,894/x
3. Step 3: Cross multiply
   43,688x = 65,894 × 65,894
4. Step 4: Simplify right side
   43,688x = 4,342,019,236
5. Step 5: Solve for x
   x = 4,342,019,236/43,688
6. Step 6: Final answer
   x = 99,387.00