Finding the Third Proportional to 109,149 and 238,589.25

Step by Step Solution

1. Step 1: Write the proportion equation
   109,149 : 238,589.25 = 238,589.25 : x
2. Step 2: Convert to fraction form
   109,149/238,589.25 = 238,589.25/x
3. Step 3: Cross multiply
   109,149x = 238,589.25 × 238,589.25
4. Step 4: Simplify right side
   109,149x = 56,924,830,215.56
5. Step 5: Solve for x
   x = 56,924,830,215.56/109,149
6. Step 6: Final answer
   x = 521,533.23