Finding the Third Proportional to 67,982 and 99,972

Step by Step Solution

1. Step 1: Write the proportion equation
   67,982 : 99,972 = 99,972 : x
2. Step 2: Convert to fraction form
   67,982/99,972 = 99,972/x
3. Step 3: Cross multiply
   67,982x = 99,972 × 99,972
4. Step 4: Simplify right side
   67,982x = 9,994,400,784
5. Step 5: Solve for x
   x = 9,994,400,784/67,982
6. Step 6: Final answer
   x = 147,015.40