Finding the Third Proportional to 405,587 and 938,904

Step by Step Solution

1. Step 1: Write the proportion equation
   405,587 : 938,904 = 938,904 : x
2. Step 2: Convert to fraction form
   405,587/938,904 = 938,904/x
3. Step 3: Cross multiply
   405,587x = 938,904 × 938,904
4. Step 4: Simplify right side
   405,587x = 881,540,721,216
5. Step 5: Solve for x
   x = 881,540,721,216/405,587
6. Step 6: Final answer
   x = 2,173,493.53