Finding the Third Proportional to 900,508 and 1,921,544

Step by Step Solution

1. Step 1: Write the proportion equation
   900,508 : 1,921,544 = 1,921,544 : x
2. Step 2: Convert to fraction form
   900,508/1,921,544 = 1,921,544/x
3. Step 3: Cross multiply
   900,508x = 1,921,544 × 1,921,544
4. Step 4: Simplify right side
   900,508x = 3,692,331,343,936
5. Step 5: Solve for x
   x = 3,692,331,343,936/900,508
6. Step 6: Final answer
   x = 4,100,276.00