Finding the Third Proportional to 123,538.50 and 173,491.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,538.50 : 173,491.50 = 173,491.50 : x
2. Step 2: Convert to fraction form
   123,538.50/173,491.50 = 173,491.50/x
3. Step 3: Cross multiply
   123,538.50x = 173,491.50 × 173,491.50
4. Step 4: Simplify right side
   123,538.50x = 30,099,300,572.25
5. Step 5: Solve for x
   x = 30,099,300,572.25/123,538.50
6. Step 6: Final answer
   x = 243,643.08