Finding the Third Proportional to 73,726.50 and 173,312.25

Step by Step Solution

1. Step 1: Write the proportion equation
   73,726.50 : 173,312.25 = 173,312.25 : x
2. Step 2: Convert to fraction form
   73,726.50/173,312.25 = 173,312.25/x
3. Step 3: Cross multiply
   73,726.50x = 173,312.25 × 173,312.25
4. Step 4: Simplify right side
   73,726.50x = 30,037,136,000.06
5. Step 5: Solve for x
   x = 30,037,136,000.06/73,726.50
6. Step 6: Final answer
   x = 407,413.02