Finding the Third Proportional to 903,856 and 1,239,384

Step by Step Solution

1. Step 1: Write the proportion equation
   903,856 : 1,239,384 = 1,239,384 : x
2. Step 2: Convert to fraction form
   903,856/1,239,384 = 1,239,384/x
3. Step 3: Cross multiply
   903,856x = 1,239,384 × 1,239,384
4. Step 4: Simplify right side
   903,856x = 1,536,072,699,456
5. Step 5: Solve for x
   x = 1,536,072,699,456/903,856
6. Step 6: Final answer
   x = 1,699,466.18