Finding the Third Proportional to 86,175 and 126,424.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,175 : 126,424.50 = 126,424.50 : x
2. Step 2: Convert to fraction form
   86,175/126,424.50 = 126,424.50/x
3. Step 3: Cross multiply
   86,175x = 126,424.50 × 126,424.50
4. Step 4: Simplify right side
   86,175x = 15,983,154,200.25
5. Step 5: Solve for x
   x = 15,983,154,200.25/86,175
6. Step 6: Final answer
   x = 185,473.21