Finding the Third Proportional to 418,103 and 917,404

Step by Step Solution

1. Step 1: Write the proportion equation
   418,103 : 917,404 = 917,404 : x
2. Step 2: Convert to fraction form
   418,103/917,404 = 917,404/x
3. Step 3: Cross multiply
   418,103x = 917,404 × 917,404
4. Step 4: Simplify right side
   418,103x = 841,630,099,216
5. Step 5: Solve for x
   x = 841,630,099,216/418,103
6. Step 6: Final answer
   x = 2,012,973.12