Finding the Third Proportional to 900,488 and 1,921,480

Step by Step Solution

1. Step 1: Write the proportion equation
   900,488 : 1,921,480 = 1,921,480 : x
2. Step 2: Convert to fraction form
   900,488/1,921,480 = 1,921,480/x
3. Step 3: Cross multiply
   900,488x = 1,921,480 × 1,921,480
4. Step 4: Simplify right side
   900,488x = 3,692,085,390,400
5. Step 5: Solve for x
   x = 3,692,085,390,400/900,488
6. Step 6: Final answer
   x = 4,100,093.94