Finding the Third Proportional to 59,631 and 80,698.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,631 : 80,698.50 = 80,698.50 : x
2. Step 2: Convert to fraction form
   59,631/80,698.50 = 80,698.50/x
3. Step 3: Cross multiply
   59,631x = 80,698.50 × 80,698.50
4. Step 4: Simplify right side
   59,631x = 6,512,247,902.25
5. Step 5: Solve for x
   x = 6,512,247,902.25/59,631
6. Step 6: Final answer
   x = 109,209.10