Finding the Third Proportional to 56,809 and 123,593.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,809 : 123,593.50 = 123,593.50 : x
2. Step 2: Convert to fraction form
   56,809/123,593.50 = 123,593.50/x
3. Step 3: Cross multiply
   56,809x = 123,593.50 × 123,593.50
4. Step 4: Simplify right side
   56,809x = 15,275,353,242.25
5. Step 5: Solve for x
   x = 15,275,353,242.25/56,809
6. Step 6: Final answer
   x = 268,889.67