Finding the Third Proportional to 160,123.50 and 344,988

Step by Step Solution

1. Step 1: Write the proportion equation
   160,123.50 : 344,988 = 344,988 : x
2. Step 2: Convert to fraction form
   160,123.50/344,988 = 344,988/x
3. Step 3: Cross multiply
   160,123.50x = 344,988 × 344,988
4. Step 4: Simplify right side
   160,123.50x = 119,016,720,144
5. Step 5: Solve for x
   x = 119,016,720,144/160,123.50
6. Step 6: Final answer
   x = 743,280.78