Finding the Third Proportional to 65,216 and 87,354

Step by Step Solution

1. Step 1: Write the proportion equation
   65,216 : 87,354 = 87,354 : x
2. Step 2: Convert to fraction form
   65,216/87,354 = 87,354/x
3. Step 3: Cross multiply
   65,216x = 87,354 × 87,354
4. Step 4: Simplify right side
   65,216x = 7,630,721,316
5. Step 5: Solve for x
   x = 7,630,721,316/65,216
6. Step 6: Final answer
   x = 117,006.89