Finding the Third Proportional to 72,687 and 156,462

Step by Step Solution

1. Step 1: Write the proportion equation
   72,687 : 156,462 = 156,462 : x
2. Step 2: Convert to fraction form
   72,687/156,462 = 156,462/x
3. Step 3: Cross multiply
   72,687x = 156,462 × 156,462
4. Step 4: Simplify right side
   72,687x = 24,480,357,444
5. Step 5: Solve for x
   x = 24,480,357,444/72,687
6. Step 6: Final answer
   x = 336,791.41