Finding the Third Proportional to 112,429.50 and 239,424

Step by Step Solution

1. Step 1: Write the proportion equation
   112,429.50 : 239,424 = 239,424 : x
2. Step 2: Convert to fraction form
   112,429.50/239,424 = 239,424/x
3. Step 3: Cross multiply
   112,429.50x = 239,424 × 239,424
4. Step 4: Simplify right side
   112,429.50x = 57,323,851,776
5. Step 5: Solve for x
   x = 57,323,851,776/112,429.50
6. Step 6: Final answer
   x = 509,864.86