Finding the Third Proportional to 31,487.63 and 68,049

Step by Step Solution

1. Step 1: Write the proportion equation
   31,487.63 : 68,049 = 68,049 : x
2. Step 2: Convert to fraction form
   31,487.63/68,049 = 68,049/x
3. Step 3: Cross multiply
   31,487.63x = 68,049 × 68,049
4. Step 4: Simplify right side
   31,487.63x = 4,630,666,401
5. Step 5: Solve for x
   x = 4,630,666,401/31,487.63
6. Step 6: Final answer
   x = 147,063.06