Finding the Third Proportional to 13,137.50 and 19,842.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,137.50 : 19,842.63 = 19,842.63 : x
2. Step 2: Convert to fraction form
   13,137.50/19,842.63 = 19,842.63/x
3. Step 3: Cross multiply
   13,137.50x = 19,842.63 × 19,842.63
4. Step 4: Simplify right side
   13,137.50x = 393,729,766.89
5. Step 5: Solve for x
   x = 393,729,766.89/13,137.50
6. Step 6: Final answer
   x = 29,969.92