Finding the Third Proportional to 43,205.50 and 65,411.75

Step by Step Solution

1. Step 1: Write the proportion equation
   43,205.50 : 65,411.75 = 65,411.75 : x
2. Step 2: Convert to fraction form
   43,205.50/65,411.75 = 65,411.75/x
3. Step 3: Cross multiply
   43,205.50x = 65,411.75 × 65,411.75
4. Step 4: Simplify right side
   43,205.50x = 4,278,697,038.06
5. Step 5: Solve for x
   x = 4,278,697,038.06/43,205.50
6. Step 6: Final answer
   x = 99,031.30