Finding the Third Proportional to 311,895 and 656,383.50

Step by Step Solution

1. Step 1: Write the proportion equation
   311,895 : 656,383.50 = 656,383.50 : x
2. Step 2: Convert to fraction form
   311,895/656,383.50 = 656,383.50/x
3. Step 3: Cross multiply
   311,895x = 656,383.50 × 656,383.50
4. Step 4: Simplify right side
   311,895x = 430,839,299,072.25
5. Step 5: Solve for x
   x = 430,839,299,072.25/311,895
6. Step 6: Final answer
   x = 1,381,360.07