Finding the Third Proportional to 900,506 and 1,921,540

Step by Step Solution

1. Step 1: Write the proportion equation
   900,506 : 1,921,540 = 1,921,540 : x
2. Step 2: Convert to fraction form
   900,506/1,921,540 = 1,921,540/x
3. Step 3: Cross multiply
   900,506x = 1,921,540 × 1,921,540
4. Step 4: Simplify right side
   900,506x = 3,692,315,971,600
5. Step 5: Solve for x
   x = 3,692,315,971,600/900,506
6. Step 6: Final answer
   x = 4,100,268.04