Finding the Third Proportional to 108,985.50 and 231,174

Step by Step Solution

1. Step 1: Write the proportion equation
   108,985.50 : 231,174 = 231,174 : x
2. Step 2: Convert to fraction form
   108,985.50/231,174 = 231,174/x
3. Step 3: Cross multiply
   108,985.50x = 231,174 × 231,174
4. Step 4: Simplify right side
   108,985.50x = 53,441,418,276
5. Step 5: Solve for x
   x = 53,441,418,276/108,985.50
6. Step 6: Final answer
   x = 490,353.47