Finding the Third Proportional to 406,829.25 and 850,837.50

Step by Step Solution

1. Step 1: Write the proportion equation
   406,829.25 : 850,837.50 = 850,837.50 : x
2. Step 2: Convert to fraction form
   406,829.25/850,837.50 = 850,837.50/x
3. Step 3: Cross multiply
   406,829.25x = 850,837.50 × 850,837.50
4. Step 4: Simplify right side
   406,829.25x = 723,924,451,406.25
5. Step 5: Solve for x
   x = 723,924,451,406.25/406,829.25
6. Step 6: Final answer
   x = 1,779,430.69