Finding the Third Proportional to 109,421.81 and 238,015.31

Step by Step Solution

1. Step 1: Write the proportion equation
   109,421.81 : 238,015.31 = 238,015.31 : x
2. Step 2: Convert to fraction form
   109,421.81/238,015.31 = 238,015.31/x
3. Step 3: Cross multiply
   109,421.81x = 238,015.31 × 238,015.31
4. Step 4: Simplify right side
   109,421.81x = 56,651,288,984.47
5. Step 5: Solve for x
   x = 56,651,288,984.47/109,421.81
6. Step 6: Final answer
   x = 517,733.05