Finding the Third Proportional to 101,708.50 and 212,712

Step by Step Solution

1. Step 1: Write the proportion equation
   101,708.50 : 212,712 = 212,712 : x
2. Step 2: Convert to fraction form
   101,708.50/212,712 = 212,712/x
3. Step 3: Cross multiply
   101,708.50x = 212,712 × 212,712
4. Step 4: Simplify right side
   101,708.50x = 45,246,394,944
5. Step 5: Solve for x
   x = 45,246,394,944/101,708.50
6. Step 6: Final answer
   x = 444,863.46