Finding the Third Proportional to 122,080.50 and 162,931.50

Step by Step Solution

1. Step 1: Write the proportion equation
   122,080.50 : 162,931.50 = 162,931.50 : x
2. Step 2: Convert to fraction form
   122,080.50/162,931.50 = 162,931.50/x
3. Step 3: Cross multiply
   122,080.50x = 162,931.50 × 162,931.50
4. Step 4: Simplify right side
   122,080.50x = 26,546,673,692.25
5. Step 5: Solve for x
   x = 26,546,673,692.25/122,080.50
6. Step 6: Final answer
   x = 217,452.20