Finding the Third Proportional to 406,238.25 and 880,273.50

Step by Step Solution

1. Step 1: Write the proportion equation
   406,238.25 : 880,273.50 = 880,273.50 : x
2. Step 2: Convert to fraction form
   406,238.25/880,273.50 = 880,273.50/x
3. Step 3: Cross multiply
   406,238.25x = 880,273.50 × 880,273.50
4. Step 4: Simplify right side
   406,238.25x = 774,881,434,802.25
5. Step 5: Solve for x
   x = 774,881,434,802.25/406,238.25
6. Step 6: Final answer
   x = 1,907,455.62