Finding the Third Proportional to 13,131 and 19,645.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,131 : 19,645.50 = 19,645.50 : x
2. Step 2: Convert to fraction form
   13,131/19,645.50 = 19,645.50/x
3. Step 3: Cross multiply
   13,131x = 19,645.50 × 19,645.50
4. Step 4: Simplify right side
   13,131x = 385,945,670.25
5. Step 5: Solve for x
   x = 385,945,670.25/13,131
6. Step 6: Final answer
   x = 29,391.95