Finding the Third Proportional to 19,513.20 and 42,306.89

Step by Step Solution

1. Step 1: Write the proportion equation
   19,513.20 : 42,306.89 = 42,306.89 : x
2. Step 2: Convert to fraction form
   19,513.20/42,306.89 = 42,306.89/x
3. Step 3: Cross multiply
   19,513.20x = 42,306.89 × 42,306.89
4. Step 4: Simplify right side
   19,513.20x = 1,789,872,994.36
5. Step 5: Solve for x
   x = 1,789,872,994.36/19,513.20
6. Step 6: Final answer
   x = 91,726.29