Finding the Third Proportional to 72,986 and 157,360

Step by Step Solution

1. Step 1: Write the proportion equation
   72,986 : 157,360 = 157,360 : x
2. Step 2: Convert to fraction form
   72,986/157,360 = 157,360/x
3. Step 3: Cross multiply
   72,986x = 157,360 × 157,360
4. Step 4: Simplify right side
   72,986x = 24,762,169,600
5. Step 5: Solve for x
   x = 24,762,169,600/72,986
6. Step 6: Final answer
   x = 339,272.87