Finding the Third Proportional to 59,679 and 80,770.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,679 : 80,770.50 = 80,770.50 : x
2. Step 2: Convert to fraction form
   59,679/80,770.50 = 80,770.50/x
3. Step 3: Cross multiply
   59,679x = 80,770.50 × 80,770.50
4. Step 4: Simplify right side
   59,679x = 6,523,873,670.25
5. Step 5: Solve for x
   x = 6,523,873,670.25/59,679
6. Step 6: Final answer
   x = 109,316.07