Finding the Third Proportional to 60,312 and 131,799

Step by Step Solution

1. Step 1: Write the proportion equation
   60,312 : 131,799 = 131,799 : x
2. Step 2: Convert to fraction form
   60,312/131,799 = 131,799/x
3. Step 3: Cross multiply
   60,312x = 131,799 × 131,799
4. Step 4: Simplify right side
   60,312x = 17,370,976,401
5. Step 5: Solve for x
   x = 17,370,976,401/60,312
6. Step 6: Final answer
   x = 288,018.58