Finding the Third Proportional to 80,451 and 120,520.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,451 : 120,520.50 = 120,520.50 : x
2. Step 2: Convert to fraction form
   80,451/120,520.50 = 120,520.50/x
3. Step 3: Cross multiply
   80,451x = 120,520.50 × 120,520.50
4. Step 4: Simplify right side
   80,451x = 14,525,190,920.25
5. Step 5: Solve for x
   x = 14,525,190,920.25/80,451
6. Step 6: Final answer
   x = 180,547.05