Finding the Third Proportional to 110,905.50 and 172,047

Step by Step Solution

1. Step 1: Write the proportion equation
   110,905.50 : 172,047 = 172,047 : x
2. Step 2: Convert to fraction form
   110,905.50/172,047 = 172,047/x
3. Step 3: Cross multiply
   110,905.50x = 172,047 × 172,047
4. Step 4: Simplify right side
   110,905.50x = 29,600,170,209
5. Step 5: Solve for x
   x = 29,600,170,209/110,905.50
6. Step 6: Final answer
   x = 266,895.42