Finding the Third Proportional to 15,939.98 and 34,909.88

Step by Step Solution

1. Step 1: Write the proportion equation
   15,939.98 : 34,909.88 = 34,909.88 : x
2. Step 2: Convert to fraction form
   15,939.98/34,909.88 = 34,909.88/x
3. Step 3: Cross multiply
   15,939.98x = 34,909.88 × 34,909.88
4. Step 4: Simplify right side
   15,939.98x = 1,218,699,372.52
5. Step 5: Solve for x
   x = 1,218,699,372.52/15,939.98
6. Step 6: Final answer
   x = 76,455.49