Finding the Third Proportional to 100,955.50 and 212,370

Step by Step Solution

1. Step 1: Write the proportion equation
   100,955.50 : 212,370 = 212,370 : x
2. Step 2: Convert to fraction form
   100,955.50/212,370 = 212,370/x
3. Step 3: Cross multiply
   100,955.50x = 212,370 × 212,370
4. Step 4: Simplify right side
   100,955.50x = 45,101,016,900
5. Step 5: Solve for x
   x = 45,101,016,900/100,955.50
6. Step 6: Final answer
   x = 446,741.55