Finding the Third Proportional to 115,755 and 238,422

Step by Step Solution

1. Step 1: Write the proportion equation
   115,755 : 238,422 = 238,422 : x
2. Step 2: Convert to fraction form
   115,755/238,422 = 238,422/x
3. Step 3: Cross multiply
   115,755x = 238,422 × 238,422
4. Step 4: Simplify right side
   115,755x = 56,845,050,084
5. Step 5: Solve for x
   x = 56,845,050,084/115,755
6. Step 6: Final answer
   x = 491,080.73