Finding the Third Proportional to 807,778 and 1,749,287

Step by Step Solution

1. Step 1: Write the proportion equation
   807,778 : 1,749,287 = 1,749,287 : x
2. Step 2: Convert to fraction form
   807,778/1,749,287 = 1,749,287/x
3. Step 3: Cross multiply
   807,778x = 1,749,287 × 1,749,287
4. Step 4: Simplify right side
   807,778x = 3,060,005,008,369
5. Step 5: Solve for x
   x = 3,060,005,008,369/807,778
6. Step 6: Final answer
   x = 3,788,175.72