Finding the Third Proportional to 67,828 and 99,712

Step by Step Solution

1. Step 1: Write the proportion equation
   67,828 : 99,712 = 99,712 : x
2. Step 2: Convert to fraction form
   67,828/99,712 = 99,712/x
3. Step 3: Cross multiply
   67,828x = 99,712 × 99,712
4. Step 4: Simplify right side
   67,828x = 9,942,482,944
5. Step 5: Solve for x
   x = 9,942,482,944/67,828
6. Step 6: Final answer
   x = 146,583.76