Finding the Third Proportional to 39,216 and 56,196

Step by Step Solution

1. Step 1: Write the proportion equation
   39,216 : 56,196 = 56,196 : x
2. Step 2: Convert to fraction form
   39,216/56,196 = 56,196/x
3. Step 3: Cross multiply
   39,216x = 56,196 × 56,196
4. Step 4: Simplify right side
   39,216x = 3,157,990,416
5. Step 5: Solve for x
   x = 3,157,990,416/39,216
6. Step 6: Final answer
   x = 80,528.11