Finding the Third Proportional to 67,827.75 and 99,780.75

Step by Step Solution

1. Step 1: Write the proportion equation
   67,827.75 : 99,780.75 = 99,780.75 : x
2. Step 2: Convert to fraction form
   67,827.75/99,780.75 = 99,780.75/x
3. Step 3: Cross multiply
   67,827.75x = 99,780.75 × 99,780.75
4. Step 4: Simplify right side
   67,827.75x = 9,956,198,070.56
5. Step 5: Solve for x
   x = 9,956,198,070.56/67,827.75
6. Step 6: Final answer
   x = 146,786.50