Finding the Third Proportional to 65,503.69 and 134,424.56

Step by Step Solution

1. Step 1: Write the proportion equation
   65,503.69 : 134,424.56 = 134,424.56 : x
2. Step 2: Convert to fraction form
   65,503.69/134,424.56 = 134,424.56/x
3. Step 3: Cross multiply
   65,503.69x = 134,424.56 × 134,424.56
4. Step 4: Simplify right side
   65,503.69x = 18,069,963,003.32
5. Step 5: Solve for x
   x = 18,069,963,003.32/65,503.69
6. Step 6: Final answer
   x = 275,861.77