Finding the Third Proportional to 13,246.88 and 19,870.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,246.88 : 19,870.31 = 19,870.31 : x
2. Step 2: Convert to fraction form
   13,246.88/19,870.31 = 19,870.31/x
3. Step 3: Cross multiply
   13,246.88x = 19,870.31 × 19,870.31
4. Step 4: Simplify right side
   13,246.88x = 394,829,318.85
5. Step 5: Solve for x
   x = 394,829,318.85/13,246.88
6. Step 6: Final answer
   x = 29,805.47