Finding the Third Proportional to 109,212 and 238,188

Step by Step Solution

1. Step 1: Write the proportion equation
   109,212 : 238,188 = 238,188 : x
2. Step 2: Convert to fraction form
   109,212/238,188 = 238,188/x
3. Step 3: Cross multiply
   109,212x = 238,188 × 238,188
4. Step 4: Simplify right side
   109,212x = 56,733,523,344
5. Step 5: Solve for x
   x = 56,733,523,344/109,212
6. Step 6: Final answer
   x = 519,480.67