Finding the Third Proportional to 85,480.50 and 155,530.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,480.50 : 155,530.50 = 155,530.50 : x
2. Step 2: Convert to fraction form
   85,480.50/155,530.50 = 155,530.50/x
3. Step 3: Cross multiply
   85,480.50x = 155,530.50 × 155,530.50
4. Step 4: Simplify right side
   85,480.50x = 24,189,736,430.25
5. Step 5: Solve for x
   x = 24,189,736,430.25/85,480.50
6. Step 6: Final answer
   x = 282,985.43