Finding the Third Proportional to 100,956.50 and 212,373

Step by Step Solution

1. Step 1: Write the proportion equation
   100,956.50 : 212,373 = 212,373 : x
2. Step 2: Convert to fraction form
   100,956.50/212,373 = 212,373/x
3. Step 3: Cross multiply
   100,956.50x = 212,373 × 212,373
4. Step 4: Simplify right side
   100,956.50x = 45,102,291,129
5. Step 5: Solve for x
   x = 45,102,291,129/100,956.50
6. Step 6: Final answer
   x = 446,749.75