Finding the Third Proportional to 89,862 and 139,716

Step by Step Solution

1. Step 1: Write the proportion equation
   89,862 : 139,716 = 139,716 : x
2. Step 2: Convert to fraction form
   89,862/139,716 = 139,716/x
3. Step 3: Cross multiply
   89,862x = 139,716 × 139,716
4. Step 4: Simplify right side
   89,862x = 19,520,560,656
5. Step 5: Solve for x
   x = 19,520,560,656/89,862
6. Step 6: Final answer
   x = 217,228.20