Finding the Third Proportional to 311,947.50 and 446,100

Step by Step Solution

1. Step 1: Write the proportion equation
   311,947.50 : 446,100 = 446,100 : x
2. Step 2: Convert to fraction form
   311,947.50/446,100 = 446,100/x
3. Step 3: Cross multiply
   311,947.50x = 446,100 × 446,100
4. Step 4: Simplify right side
   311,947.50x = 199,005,210,000
5. Step 5: Solve for x
   x = 199,005,210,000/311,947.50
6. Step 6: Final answer
   x = 637,944.56