Finding the Third Proportional to 72,726 and 156,912

Step by Step Solution

1. Step 1: Write the proportion equation
   72,726 : 156,912 = 156,912 : x
2. Step 2: Convert to fraction form
   72,726/156,912 = 156,912/x
3. Step 3: Cross multiply
   72,726x = 156,912 × 156,912
4. Step 4: Simplify right side
   72,726x = 24,621,375,744
5. Step 5: Solve for x
   x = 24,621,375,744/72,726
6. Step 6: Final answer
   x = 338,549.84