Finding the Third Proportional to 65,569.50 and 135,810

Step by Step Solution

1. Step 1: Write the proportion equation
   65,569.50 : 135,810 = 135,810 : x
2. Step 2: Convert to fraction form
   65,569.50/135,810 = 135,810/x
3. Step 3: Cross multiply
   65,569.50x = 135,810 × 135,810
4. Step 4: Simplify right side
   65,569.50x = 18,444,356,100
5. Step 5: Solve for x
   x = 18,444,356,100/65,569.50
6. Step 6: Final answer
   x = 281,294.75