Finding the Third Proportional to 111,478 and 238,076

Step by Step Solution

1. Step 1: Write the proportion equation
   111,478 : 238,076 = 238,076 : x
2. Step 2: Convert to fraction form
   111,478/238,076 = 238,076/x
3. Step 3: Cross multiply
   111,478x = 238,076 × 238,076
4. Step 4: Simplify right side
   111,478x = 56,680,181,776
5. Step 5: Solve for x
   x = 56,680,181,776/111,478
6. Step 6: Final answer
   x = 508,442.76