Finding the Third Proportional to 126,276 and 210,433.50

Step by Step Solution

1. Step 1: Write the proportion equation
   126,276 : 210,433.50 = 210,433.50 : x
2. Step 2: Convert to fraction form
   126,276/210,433.50 = 210,433.50/x
3. Step 3: Cross multiply
   126,276x = 210,433.50 × 210,433.50
4. Step 4: Simplify right side
   126,276x = 44,282,257,922.25
5. Step 5: Solve for x
   x = 44,282,257,922.25/126,276
6. Step 6: Final answer
   x = 350,678.34