Finding the Third Proportional to 406,265.63 and 865,019.25

Step by Step Solution

1. Step 1: Write the proportion equation
   406,265.63 : 865,019.25 = 865,019.25 : x
2. Step 2: Convert to fraction form
   406,265.63/865,019.25 = 865,019.25/x
3. Step 3: Cross multiply
   406,265.63x = 865,019.25 × 865,019.25
4. Step 4: Simplify right side
   406,265.63x = 748,258,302,870.56
5. Step 5: Solve for x
   x = 748,258,302,870.56/406,265.63
6. Step 6: Final answer
   x = 1,841,795.75