Finding the Third Proportional to 67,828 and 99,780.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,828 : 99,780.50 = 99,780.50 : x
2. Step 2: Convert to fraction form
   67,828/99,780.50 = 99,780.50/x
3. Step 3: Cross multiply
   67,828x = 99,780.50 × 99,780.50
4. Step 4: Simplify right side
   67,828x = 9,956,148,180.25
5. Step 5: Solve for x
   x = 9,956,148,180.25/67,828
6. Step 6: Final answer
   x = 146,785.22