Finding the Third Proportional to 65,215 and 87,353

Step by Step Solution

1. Step 1: Write the proportion equation
   65,215 : 87,353 = 87,353 : x
2. Step 2: Convert to fraction form
   65,215/87,353 = 87,353/x
3. Step 3: Cross multiply
   65,215x = 87,353 × 87,353
4. Step 4: Simplify right side
   65,215x = 7,630,546,609
5. Step 5: Solve for x
   x = 7,630,546,609/65,215
6. Step 6: Final answer
   x = 117,006.00