Finding the Third Proportional to 311,850 and 673,555.50

Step by Step Solution

1. Step 1: Write the proportion equation
   311,850 : 673,555.50 = 673,555.50 : x
2. Step 2: Convert to fraction form
   311,850/673,555.50 = 673,555.50/x
3. Step 3: Cross multiply
   311,850x = 673,555.50 × 673,555.50
4. Step 4: Simplify right side
   311,850x = 453,677,011,580.25
5. Step 5: Solve for x
   x = 453,677,011,580.25/311,850
6. Step 6: Final answer
   x = 1,454,792.41