Finding the Third Proportional to 65,920.50 and 136,512

Step by Step Solution

1. Step 1: Write the proportion equation
   65,920.50 : 136,512 = 136,512 : x
2. Step 2: Convert to fraction form
   65,920.50/136,512 = 136,512/x
3. Step 3: Cross multiply
   65,920.50x = 136,512 × 136,512
4. Step 4: Simplify right side
   65,920.50x = 18,635,526,144
5. Step 5: Solve for x
   x = 18,635,526,144/65,920.50
6. Step 6: Final answer
   x = 282,696.98