Finding the Third Proportional to 71,449.50 and 156,912

Step by Step Solution

1. Step 1: Write the proportion equation
   71,449.50 : 156,912 = 156,912 : x
2. Step 2: Convert to fraction form
   71,449.50/156,912 = 156,912/x
3. Step 3: Cross multiply
   71,449.50x = 156,912 × 156,912
4. Step 4: Simplify right side
   71,449.50x = 24,621,375,744
5. Step 5: Solve for x
   x = 24,621,375,744/71,449.50
6. Step 6: Final answer
   x = 344,598.29