Finding the Third Proportional to 162,118.88 and 258,987.94

Step by Step Solution

1. Step 1: Write the proportion equation
   162,118.88 : 258,987.94 = 258,987.94 : x
2. Step 2: Convert to fraction form
   162,118.88/258,987.94 = 258,987.94/x
3. Step 3: Cross multiply
   162,118.88x = 258,987.94 × 258,987.94
4. Step 4: Simplify right side
   162,118.88x = 67,074,751,770.50
5. Step 5: Solve for x
   x = 67,074,751,770.50/162,118.88
6. Step 6: Final answer
   x = 413,738.08