Finding the Third Proportional to 468,100.50 and 685,486.50

Step by Step Solution

1. Step 1: Write the proportion equation
   468,100.50 : 685,486.50 = 685,486.50 : x
2. Step 2: Convert to fraction form
   468,100.50/685,486.50 = 685,486.50/x
3. Step 3: Cross multiply
   468,100.50x = 685,486.50 × 685,486.50
4. Step 4: Simplify right side
   468,100.50x = 469,891,741,682.25
5. Step 5: Solve for x
   x = 469,891,741,682.25/468,100.50
6. Step 6: Final answer
   x = 1,003,826.62