Finding the Third Proportional to 65,217 and 87,355.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,217 : 87,355.50 = 87,355.50 : x
2. Step 2: Convert to fraction form
   65,217/87,355.50 = 87,355.50/x
3. Step 3: Cross multiply
   65,217x = 87,355.50 × 87,355.50
4. Step 4: Simplify right side
   65,217x = 7,630,983,380.25
5. Step 5: Solve for x
   x = 7,630,983,380.25/65,217
6. Step 6: Final answer
   x = 117,009.11