Finding the Third Proportional to 66,592.50 and 144,936

Step by Step Solution

1. Step 1: Write the proportion equation
   66,592.50 : 144,936 = 144,936 : x
2. Step 2: Convert to fraction form
   66,592.50/144,936 = 144,936/x
3. Step 3: Cross multiply
   66,592.50x = 144,936 × 144,936
4. Step 4: Simplify right side
   66,592.50x = 21,006,444,096
5. Step 5: Solve for x
   x = 21,006,444,096/66,592.50
6. Step 6: Final answer
   x = 315,447.60