Finding the Third Proportional to 131,532 and 213,696

Step by Step Solution

1. Step 1: Write the proportion equation
   131,532 : 213,696 = 213,696 : x
2. Step 2: Convert to fraction form
   131,532/213,696 = 213,696/x
3. Step 3: Cross multiply
   131,532x = 213,696 × 213,696
4. Step 4: Simplify right side
   131,532x = 45,665,980,416
5. Step 5: Solve for x
   x = 45,665,980,416/131,532
6. Step 6: Final answer
   x = 347,185.33