Finding the Third Proportional to 13,173 and 19,894.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,173 : 19,894.50 = 19,894.50 : x
2. Step 2: Convert to fraction form
   13,173/19,894.50 = 19,894.50/x
3. Step 3: Cross multiply
   13,173x = 19,894.50 × 19,894.50
4. Step 4: Simplify right side
   13,173x = 395,791,130.25
5. Step 5: Solve for x
   x = 395,791,130.25/13,173
6. Step 6: Final answer
   x = 30,045.63