Finding the Third Proportional to 579,843 and 816,547.50

Step by Step Solution

1. Step 1: Write the proportion equation
   579,843 : 816,547.50 = 816,547.50 : x
2. Step 2: Convert to fraction form
   579,843/816,547.50 = 816,547.50/x
3. Step 3: Cross multiply
   579,843x = 816,547.50 × 816,547.50
4. Step 4: Simplify right side
   579,843x = 666,749,819,756.25
5. Step 5: Solve for x
   x = 666,749,819,756.25/579,843
6. Step 6: Final answer
   x = 1,149,879.92